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>

libunwind.spec

@@ -4,7 +4,7 @@
 Summary: An unwinding library
 Name: libunwind
 Version: 1.2.1
-Release: 4%{?dist}
+Release: 5%{?dist}
 License: BSD
 URL: http://savannah.nongnu.org/projects/libunwind
 
@@ -90,6 +90,9 @@ echo ====================TESTSUITE DISABLED=========================
 %{_includedir}/libunwind*.h
 
 %changelog
+* Fri Feb 09 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.2.1-5
+- Escape macros in %%changelog
+
 * Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.1-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
 
@@ -189,7 +192,7 @@ echo ====================TESTSUITE DISABLED=========================
 - Merge-review cleanup (#226052)
 
 * Fri Dec  4 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.99-0.13.20090430betagit4b8404d1
-- The devel package now requires also base package's %{release}.
+- The devel package now requires also base package's %%{release}.
 - Update the obsolete macro %%{package_version}.
 
 * Sat Jul 25 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.99-0.12.20090430betagit4b8404d1