Consistent use of whitespace

Remove double line whitespace between %package and %description.
Also remove whitespace lines within %package sections.

Double line whitespace is kept between subpackages for visual clarity.

nbdkit.spec

@@ -188,7 +188,6 @@ reading the nbdkit(1) and nbdkit-plugin(3) manual pages.
 %package server
 Summary:        The %{name} server
 License:        BSD
-
 Provides:       %{name}-null-plugin = %{version}-%{release}
 
 %description server
@@ -201,7 +200,6 @@ the metapackage "nbdkit".
 %package basic-plugins
 Summary:        Basic plugins for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 Provides:       %{name}-data-plugin = %{version}-%{release}
 Provides:       %{name}-eval-plugin = %{version}-%{release}
@@ -259,14 +257,12 @@ nbdkit-zero-plugin          Zero-length plugin for testing.
 %package example-plugins
 Summary:        Example plugins for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 %if !0%{?rhel}
 # example4 is written in Perl.
 Requires:       %{name}-perl-plugin
 %endif
 
-
 %description example-plugins
 This package contains example plugins for %{name}.
 
@@ -278,12 +274,10 @@ This package contains example plugins for %{name}.
 %package cc-plugin
 Summary:        Write small inline C plugins and scripts for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 Requires:       gcc
 Requires:       %{_bindir}/cat
 
-
 %description cc-plugin
 This package contains support for writing inline C plugins and scripts
 for %{name}.  NOTE this is NOT the right package for writing plugins
@@ -295,12 +289,10 @@ in C, install %{name}-devel for that.
 %package cdi-plugin
 Summary:        Containerized Data Import plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 Requires:       jq
 Requires:       podman
 
-
 %description cdi-plugin
 This package contains Containerized Data Import support for %{name}.
 %endif
@@ -309,10 +301,8 @@ This package contains Containerized Data Import support for %{name}.
 %package curl-plugin
 Summary:        HTTP/FTP (cURL) plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description curl-plugin
 This package contains cURL (HTTP/FTP) support for %{name}.
 
@@ -321,10 +311,8 @@ This package contains cURL (HTTP/FTP) support for %{name}.
 %package guestfs-plugin
 Summary:        libguestfs plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description guestfs-plugin
 This package is a libguestfs plugin for %{name}.
 %endif
@@ -334,11 +322,9 @@ This package is a libguestfs plugin for %{name}.
 %package iso-plugin
 Summary:        Virtual ISO 9660 plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 Requires:       xorriso
 
-
 %description iso-plugin
 This package is a virtual ISO 9660 (CD-ROM) plugin for %{name}.
 %endif
@@ -348,10 +334,8 @@ This package is a virtual ISO 9660 (CD-ROM) plugin for %{name}.
 %package libvirt-plugin
 Summary:        Libvirt plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description libvirt-plugin
 This package is a libvirt plugin for %{name}.  It lets you access
 libvirt guest disks readonly.  It is implemented using the libvirt
@@ -362,12 +346,10 @@ virDomainBlockPeek API.
 %package linuxdisk-plugin
 Summary:        Virtual Linux disk plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 # for mke2fs
 Requires:       e2fsprogs
 
-
 %description linuxdisk-plugin
 This package is a virtual Linux disk plugin for %{name}.
 
@@ -376,10 +358,8 @@ This package is a virtual Linux disk plugin for %{name}.
 %package lua-plugin
 Summary:        Lua plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description lua-plugin
 This package lets you write Lua plugins for %{name}.
 %endif
@@ -388,10 +368,8 @@ This package lets you write Lua plugins for %{name}.
 %package nbd-plugin
 Summary:        NBD proxy / forward plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description nbd-plugin
 This package lets you forward NBD connections from %{name}
 to another NBD server.
@@ -401,10 +379,8 @@ to another NBD server.
 %package ocaml-plugin
 Summary:        OCaml plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description ocaml-plugin
 This package lets you run OCaml plugins for %{name}.
 
@@ -415,11 +391,9 @@ To compile OCaml plugins you will also need to install
 %package ocaml-plugin-devel
 Summary:        OCaml development environment for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 Requires:       %{name}-ocaml-plugin%{?_isa} = %{version}-%{release}
 
-
 %description ocaml-plugin-devel
 This package lets you write OCaml plugins for %{name}.
 %endif
@@ -429,10 +403,8 @@ This package lets you write OCaml plugins for %{name}.
 %package perl-plugin
 Summary:        Perl plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description perl-plugin
 This package lets you write Perl plugins for %{name}.
 %endif
@@ -441,10 +413,8 @@ This package lets you write Perl plugins for %{name}.
 %package python-plugin
 Summary:        Python 3 plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description python-plugin
 This package lets you write Python 3 plugins for %{name}.
 
@@ -453,10 +423,8 @@ This package lets you write Python 3 plugins for %{name}.
 %package ruby-plugin
 Summary:        Ruby plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description ruby-plugin
 This package lets you write Ruby plugins for %{name}.
 %endif
@@ -468,12 +436,10 @@ This package lets you write Ruby plugins for %{name}.
 %package S3-plugin
 Summary:        Amazon S3 and Ceph plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-python-plugin >= 1.22
 # XXX Should not need to add this.
 Requires:       python3-boto3
 
-
 %description S3-plugin
 This package lets you open disk images stored in Amazon S3
 or Ceph using %{name}.
@@ -483,10 +449,8 @@ or Ceph using %{name}.
 %package ssh-plugin
 Summary:        SSH plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description ssh-plugin
 This package contains SSH support for %{name}.
 
@@ -495,10 +459,8 @@ This package contains SSH support for %{name}.
 %package tcl-plugin
 Summary:        Tcl plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description tcl-plugin
 This package lets you write Tcl plugins for %{name}.
 %endif
@@ -507,7 +469,6 @@ This package lets you write Tcl plugins for %{name}.
 %package tmpdisk-plugin
 Summary:        Remote temporary filesystem disk plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 # For mkfs and mke2fs (defaults).
 Requires:       util-linux, e2fsprogs
@@ -517,7 +478,6 @@ Suggests:       xfsprogs
 Suggests:       ntfsprogs, dosfstools
 %endif
 
-
 %description tmpdisk-plugin
 This package is a remote temporary filesystem disk plugin for %{name}.
 
@@ -526,10 +486,8 @@ This package is a remote temporary filesystem disk plugin for %{name}.
 %package torrent-plugin
 Summary:        BitTorrent plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description torrent-plugin
 This package is a BitTorrent plugin for %{name}.
 %endif
@@ -539,12 +497,10 @@ This package is a BitTorrent plugin for %{name}.
 %package vddk-plugin
 Summary:        VMware VDDK plugin for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 # https://bugzilla.redhat.com/show_bug.cgi?id=1931818
 Requires:       libxcrypt-compat
 
-
 %description vddk-plugin
 This package is a plugin for %{name} which connects to
 VMware VDDK for accessing VMware disks and servers.
@@ -554,7 +510,6 @@ VMware VDDK for accessing VMware disks and servers.
 %package basic-filters
 Summary:        Basic filters for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 Provides:       %{name}-blocksize-filter = %{version}-%{release}
 Provides:       %{name}-cache-filter = %{version}-%{release}
@@ -590,7 +545,6 @@ Provides:       %{name}-swab-filter = %{version}-%{release}
 Provides:       %{name}-tls-fallback-filter = %{version}-%{release}
 Provides:       %{name}-truncate-filter = %{version}-%{release}
 
-
 %description basic-filters
 This package contains filters for %{name} which only depend on simple
 C libraries: glibc, gnutls.  Other filters for nbdkit with more
@@ -667,10 +621,8 @@ nbdkit-truncate-filter     Truncate, expand, round up or round down size.
 %package ext2-filter
 Summary:        ext2, ext3 and ext4 filesystem support for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description ext2-filter
 This package contains ext2, ext3 and ext4 filesystem support for
 %{name}.
@@ -680,10 +632,8 @@ This package contains ext2, ext3 and ext4 filesystem support for
 %package gzip-filter
 Summary:        GZip filter for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description gzip-filter
 This package is a gzip filter for %{name}.
 
@@ -691,13 +641,10 @@ This package is a gzip filter for %{name}.
 %package tar-filter
 Summary:        Tar archive filter for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 Requires:       tar
-
 Obsoletes:      %{name}-tar-plugin < 1.23.9-3
 
-
 %description tar-filter
 This package is a tar archive filter for %{name}.
 
@@ -705,10 +652,8 @@ This package is a tar archive filter for %{name}.
 %package xz-filter
 Summary:        XZ filter for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 
-
 %description xz-filter
 This package is the xz filter for %{name}.
 
@@ -716,11 +661,9 @@ This package is the xz filter for %{name}.
 %package devel
 Summary:        Development files and documentation for %{name}
 License:        BSD
-
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
 Requires:       pkgconfig
 
-
 %description devel
 This package contains development files and documentation
 for %{name}.  Install this package if you want to develop
@@ -733,7 +676,6 @@ BuildArch:     noarch
 Requires:      bash-completion >= 2.0
 Requires:      %{name}-server = %{version}-%{release}
 
-
 %description bash-completion
 Install this package if you want intelligent bash tab-completion
 for %{name}.