.gitignore in acts_as_audited-2.0.0 vs .gitignore in acts_as_audited-2.1.0

@@ -5,6 +5,7 @@
 pkg
 *.swp
 .bundle
 tmp/*
 .yardoc
-.rvmrc
\ No newline at end of file
+.rvmrc
+Gemfile.lock