Map a P4 user to a specific name and email address in Git with the
"git-p4.mapUser" config. The config value must be a string adhering
to the format "p4user = First Lastname <email@address.com>".
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Reviewed-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>