Merge pull request #51 from max-krasnyansky/rm-key-fix

Regex used in rm-key command is too lax

lib/gitlab_keys.rb

@@ -31,7 +31,7 @@ class GitlabKeys
   end
 
   def rm_key
-    cmd = "sed -i '/shell #{@key_id}/d' #{auth_file}"
+    cmd = "sed -i '/shell #{@key_id}\"/d' #{auth_file}"
     system(cmd)
   end
 end