tree 1f78468a70e496548d243d8ec7d63dd1d210481b
parent 2781507ad355d1a2dbc9e963947c339e79669225
author Dmitri Shuralyov <dmitshur@golang.org> 1539192370 -0400
committer Dmitri Shuralyov <dmitshur@golang.org> 1539193282 +0000

cmd/genbootstrap: assign usage to flag.Usage

Assigning usage to flag.Usage makes it get picked up by flag.Parse
when the -help flag is specified.

This makes the usage printing more consistent and helpful.

Before:

	$ ./genbootstrap -help
	Usage of ./genbootstrap:
	  -skip_build
	    	skip bootstrap.bash step; useful during development of cleaning code
	$ ./genbootstrap
	2018/10/10 13:34:01 Usage: genbootstrap GOOS/GOARCH

After:

	$ ./genbootstrap -help
	Usage: genbootstrap GOOS/GOARCH
	  -skip_build
	    	skip bootstrap.bash step; useful during development of cleaning code
	$ ./genbootstrap
	Usage: genbootstrap GOOS/GOARCH
	  -skip_build
	    	skip bootstrap.bash step; useful during development of cleaning code

Change-Id: Ia5553bf452d85842eed926aca5a7fc36dc7cdf47
Reviewed-on: https://go-review.googlesource.com/c/141177
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>