spec: rename 'gettext-msghack' to 'msghack'

And add %license file.

Version: 0.19.8.1-4
Related: rhbz#1405433

gettext.spec

@@ -135,11 +135,11 @@ Obsoletes: emacs-%{name}-el < %{version}-%{release}
 %description -n emacs-%{name}
 This package provides a major mode for editing po files within GNU Emacs.
 
-%package msghack
+%package -n msghack
 Summary: Alter PO files in ways
 BuildArch: noarch
 
-%description msghack
+%description -n msghack
 This program can be used to alter .po files in ways no sane mind would
 think about.
 
@@ -352,13 +352,15 @@ fi
 %{_emacs_sitelispdir}/%{name}/*.el
 %{_emacs_sitestartdir}/*.el
 
-%files msghack
+%files -n msghack
+%license COPYING
 %{_bindir}/msghack
 %{_mandir}/man1/msghack.1*
 
 %changelog
 * Fri Dec 16 2016 Petr Šabata <contyk@redhat.com> - 0.19.8.1-4
 - Subpackage msghack so that gettext doesn't depend on python
+- name the new sub-package 'msghack'
 
 * Tue Nov 29 2016 Pavel Raiskup <praiskup@redhat.com> - 0.19.8.1-3
 - devel subpackage to Require 'xz' (rhbz#1399270)