kbuild: support mercurial in setlocalversion

This represents mercurial changesets similarly to git.  For untagged
revisions, append the changeset id.  If there are uncommitted changes,
append -dirty.  For example, -hgc60016ba6237-dirty

Signed-off-by: Aron Griffis <aron@hp.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
1 file changed