tiki_minify_css: Fix description (grouping multiple files comes from tiki_minify_css_single_file)
tiki_minify_css: Fix description (grouping multiple files comes from tiki_minify_css_single_file)

git-svn-id: a7fabbc6a7c54ea5c67cbd16bd322330fd10cc35@63006 b456876b-0849-0410-b77d-98878d47e9d5

tikiorg/tiki,tikiorg/tiki,tikiorg/tiki,tikiorg/tiki