.gitignore in boolean_timestamp-0.2.1 vs .gitignore in boolean_timestamp-1.0.0

@@ -5,10 +5,9 @@
 /coverage/
 /doc/
 /pkg/
 /spec/reports/
 /tmp/
-/Gemfile.lock
 /gemfiles/*.lock
 /gemfiles/.bundle/
 
 # rspec failure tracking
 .rspec_status