Switch to run_command_v_opt in revert
Switch to run_command_v_opt in revert

Another change by me is removing the va_list variants of run_command,
one of which is used by builtin-revert.c.  To avoid compile errors
I'm refactoring builtin-revert to use the char** variant instead,
as that variant is staying.

Signed-off-by: Shawn O. Pearce <f01032651c12a22b2103346ba96b3b6b231f9d3c@spearce.org>
Signed-off-by: Junio C Hamano <dc50d1021234060e53ec42a77d526afa2fe07479@cox.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git