.gitignore in prometheus_exporter-0.6.0 vs .gitignore in prometheus_exporter-0.7.0

@@ -5,7 +5,9 @@
 /doc/
 /pkg/
 /spec/reports/
 /tmp/
 Gemfile.lock
+/gemfiles/*.gemfile.lock
+
 
 .rubocop-https---raw-githubusercontent-com-discourse-discourse-master--rubocop-yml