Fix previous patch

I'm bumping the release because the previous version was already built
in koji, but reusing the changelog entry because previous patch didn't really
do anything.

rubygem-rack.spec

@@ -7,7 +7,7 @@ Name: rubygem-%{gem_name}
 Version: 2.0.6
 # Introduce Epoch (related to bug 552972)
 Epoch:  1
-Release: 2%{?dist}
+Release: 3%{?dist}
 Summary: A modular Ruby webserver interface
 # lib/rack/show_{status,exceptions}.rb contains snippets from Django under BSD license.
 License: MIT and BSD
@@ -95,7 +95,7 @@ memcached -d -P "$PID"
 # Rack::Session::Memcache#test_0009_maintains freshness
 # requires encoding set to UTF-8:
 # https://github.com/rack/rack/issues/1305
-LC_ALL=en_US.UTF-8 \
+LC_ALL=C.UTF-8 \
 ruby -Ilib:test -e 'Dir.glob "./test/spec_*.rb", &method(:require)'
 
 # Kill memcached daemon.
@@ -124,7 +124,7 @@ popd
 %doc %{gem_instdir}/contrib
 
 %changelog
-* Sun Nov 18 2018 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 1:2.0.6-2
+* Sun Nov 18 2018 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 1:2.0.6-3
 - Use C.UTF-8 locale
   See https://fedoraproject.org/wiki/Changes/Remove_glibc-langpacks-all_from_buildroot