Re: [PATCH 4/8] pathspec: rename PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP

Brandon Williams [off-list ref] writes:

Now that there is only a single flag which strips a submodule slash,
rename PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP to
PATHSPEC_STRIP_SUBMODULE_SLASH.

This is a logical follow-up to the previous step.