Merge branch 'sb/pull-rebase-submodule'

"git pull --rebase -v" in a repository with a submodule barfed as
an intermediate process did not understand what "-v(erbose)" flag
meant, which has been fixed.

* sb/pull-rebase-submodule:
  git-submodule.sh: accept verbose flag in cmd_update to be non-quiet

git-submodule.sh

@@ -438,6 +438,9 @@ cmd_update()
 		-q|--quiet)
 			GIT_QUIET=1
 			;;
+		-v)
+			GIT_QUIET=0
+			;;
 		--progress)
 			progress=1
 			;;