remove the unnecessary 'var' in runVerbose

Summary:
[react-native-cli] Remove the unnecessary 'var' in `runVerbose`, keep pace with `run`.
Closes #9758

Differential Revision: D3821139

Pulled By: javache

fbshipit-source-id: 7651135a91a22d7e07af89fde20da3194ce054c8

react-native-cli/index.js

@@ -224,7 +224,7 @@ function run(root, projectName, rnPackage) {
 
     checkNodeVersion();
 
-    var cli = require(CLI_MODULE_PATH());
+    cli = require(CLI_MODULE_PATH());
     cli.init(root, projectName);
   });
 }