alias --help to help on subcommands

When the --help option is present it will change the args array to
include the help command.
revising branch to also inlude the short option

Now the -h and --help enact the same functionality as if help was called
on the subcommand.
remove stray whitespace
Merge pull request #383 from developingchris/alias_help_option_to_help

alias --help to help on subcommands