Summary:
Prior to the RNPM integration, command names would match the second argument passed to the react-native-cli. Now the command names contain some usage information (such as non-flag CLI arguments). This commit splits the name of the commands and checks that against the second command line argument.
Closes https://github.com/facebook/react-native/pull/9171
Differential Revision: D3661799
fbshipit-source-id: dc2aa9cd9e69dde3c5b877aeb77a17c4f6427075