.gitignore in frikandel-2.3.0 vs .gitignore in frikandel-3.0.0

@@ -3,9 +3,10 @@
 .bundle
 .config
 .ruby-*
 .yardoc
 Gemfile*.lock
+*.gemfile.lock
 InstalledFiles
 _yardoc
 coverage
 doc/
 lib/bundler/man