Escape macros in %changelog

Reference: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/Y2ZUKK2B7T2IKXPMODNF6HB2O5T5TS6H/
Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>

djvulibre.spec

@@ -3,7 +3,7 @@
 Summary: DjVu viewers, encoders, and utilities
 Name: djvulibre
 Version: 3.5.27
-Release: 6%{?dist}
+Release: 7%{?dist}
 License: GPLv2+
 Group: Applications/Publishing
 URL: http://djvu.sourceforge.net/
@@ -169,6 +169,9 @@ fi
 
 
 %changelog
+* Fri Feb 09 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 3.5.27-7
+- Escape macros in %%changelog
+
 * Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 3.5.27-6
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
 
@@ -222,7 +225,7 @@ fi
 - Add autoreconf to BuildRequires.
 
 * Thu May 23 2013 François Cami <fcami@fedoraproject.org> - - 3.5.25.3-7
-- Call autoreconf in %build (#925264).
+- Call autoreconf in %%build (#925264).
 
 * Wed Feb 13 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 3.5.25.3-6
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild