removed file modification for a more clear commit

Author: akhomchenko

lib/src/command/run.dart

@@ -22,7 +22,6 @@ class RunCommand extends PubCommand {
   RunCommand() {
     argParser.addFlag("checked",
         abbr: "c", help: "Enable runtime type checks and assertions.");
-
     argParser.addOption("mode",
         help: 'Mode to run transformers in.\n'
             '(defaults to "release" for dependencies, "debug" for '