The revert command comes with their own implementation of checking
for exclusiveness of parameters.
Now that the OPT_CMDMODE is in place, we can also rely on that macro
instead of cooking that solution for each command itself.
This commit also replaces OPT_BOOLEAN, which was deprecated by
b04ba2bb
(parse-options: deprecate OPT_BOOLEAN, 2011-09-27). Instead OPT_BOOL is
used.
Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>