tree 21760d73e671e9452380913cf1643f103649a96c
parent 6a5c4b13a1d9970f83a3c8f3fe258ae2c850bf80
author Masahiro Yamada <yamada.m@jp.panasonic.com> 1408702361 +0900
committer Tom Rini <trini@ti.com> 1408718556 -0400

buildman: refactor help message

"buildman [options]" is displayed by default.

Append the rest of help messages to parser.usage
instead of replacing it.

Besides, "-b <branch>" is not mandatory since commit fea5858e.
Drop it from the usage.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>