.gitignore in repeatable-0.6.0 vs .gitignore in repeatable-1.0.0

@@ -1,8 +1,7 @@
 /*.gem
 /.bundle/
 /.yardoc
-/Gemfile.lock
 /_yardoc/
 /coverage/
 /doc/
 /pkg/
 /spec/reports/