Add force-draft argument description

Add metaVar so the user gets a proper message when using the command
without the required argument.

'fatal: Argument "{CHANGE,PATCHSET}" is required'

instead of

'fatal: Argument "" is required'

Change-Id: I3f56dd7d4613e2ff9dbbc78a7a82452c969170b7
1 file changed
tree: b884ed59576faae881ca3adabdcafd8f5188b564
  1. src/
  2. BUCK
  3. pom.xml
  4. VERSION