[PATCH 1/6 v5] revision.c: do not update argv with unknown option

handle_revision_opt() tries to recognize and handle the given argument. If an option was unknown to it, it used to add the option to unkv[(*unkc)++]. This increment of unkc causes the variable in the caller to change. Teach handle_revision_opt to not update unknown arguments inside unkc anymore.

[PATCH 1/6 v5] revision.c: do not update argv with unknown option

handle_revision_opt() tries to recognize and handle the given argument. If an option was unknown to it, it used to add the option to unkv[(*unkc)++]. This increment of unkc causes the variable in the caller to change. Teach handle_revision_opt to not update unknown arguments inside unkc anymore.