add diffutils as dependency on gettext-devel

gettext.spec

@@ -7,7 +7,7 @@
 Summary: GNU libraries and utilities for producing multi-lingual messages
 Name: gettext
 Version: %{tarversion}
-Release: 2%{?dist}
+Release: 3%{?dist}
 # The following are licensed under LGPLv2+:
 # - libintl and its headers
 # - libasprintf and its headers
@@ -112,6 +112,7 @@ Requires: %{name} = %{version}-%{release}
 Requires: %{name}-libs = %{version}-%{release}
 Requires: %{name}-common-devel = %{version}-%{release}
 Requires: xz
+Requires: diffutils
 Obsoletes: gettext-autopoint < 0.18.1.1-3
 Provides: gettext-autopoint = %{version}-%{release}
 
@@ -396,6 +397,9 @@ make check LIBUNISTRING=-lunistring
 %{_mandir}/man1/msghack.1*
 
 %changelog
+* Mon Jan 06 2020 Sundeep Anand <suanand@redhat.com> - 0.20.1-3
+- Add diffutils dependency on gettext-devel (rhbz#1774899)
+
 * Tue Aug 20 2019 Daiki Ueno <dueno@redhat.com> - 0.20.1-2
 - Fix misbehavior of msgmerge --for-msgfmt