pr.rb in circleci-bundle-update-pr-1.6.1

- old
+ new

@@ -38,10 +38,10 @@
           system("git config user.name #{git_username}")
           system("git config user.email #{git_email}")
           system("git add Gemfile.lock")
           system("git commit -m '$ bundle update && bundle update --ruby'")
           system("git branch -M #{branch}")
-          system("git push github-url-with-token #{branch}")
+          system("git push -q github-url-with-token #{branch}")
         end
         private_class_method :create_branch
 
         def self.create_pull_request(repo_full_name, branch, now)
           title = "bundle update at #{now.strftime('%Y-%m-%d %H:%M:%S %Z')}"