[RFH/PATCH 4/4] OPT__FORCE(): clarify its expected use by using OPT_COUNTUP

[Junio C Hamano <gitster@pobox.com>]

The parseopt parsing for OPT__FORCE() is implemented in terms of
OPT_BOOLEAN() and users of it can take advantage of the "counting
up" behaviour to implement increasing levels of forcefulness by
differentiating "git cmd -f" and "git cmd -f -f".

Clarify this by explicitly using OPT_COUNTUP() instead.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

 * This _should_ be done with a similar audit of existing callers,
   but I ran out of concentration.

 parse-options.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/parse-options.h b/parse-options.h
index 78f52c2..1eeb0d9 100644
--- a/parse-options.h
+++ b/parse-options.h
@@ -238,7 +238,7 @@ extern int parse_opt_noop_cb(const struct option *, const char *, int);
 	{ OPTION_CALLBACK, 'q', "quiet", (var), NULL, N_("be more quiet"), \
 	  PARSE_OPT_NOARG, &parse_opt_verbosity_cb, 0 }
 #define OPT__DRY_RUN(var, h)  OPT_BOOL('n', "dry-run", (var), (h))
-#define OPT__FORCE(var, h)    OPT_BOOLEAN('f', "force",   (var), (h))
+#define OPT__FORCE(var, h)    OPT_COUNTUP('f', "force",   (var), (h))
 #define OPT__ABBREV(var)  \
 	{ OPTION_CALLBACK, 0, "abbrev", (var), N_("n"),	\
 	  N_("use <n> digits to display SHA-1s"),	\
-- 
1.8.4-rc1-210-gf6d87e2