parse-options.[ch]: revert use of "enum" for parse_options()

Revert the parse_options() prototype change in my recent
352e761388b (parse-options.[ch]: consistently use "enum
parse_opt_result", 2021-10-08) was incorrect. The parse_options()
function returns the number of argc elements that haven't been
processed, not "enum parse_opt_result".

Reported-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 4 insertions, 5 deletions

diff --git a/parse-options.h b/parse-options.h
index dd79c9c566..ce2c0df37b 100644
--- a/parse-options.h
+++ b/parse-options.h
@@ -211,11 +211,10 @@ struct option {
  * untouched and parse_options() returns the number of options
  * processed.
  */
-enum parse_opt_result parse_options(int argc, const char **argv,
-				    const char *prefix,
-				    const struct option *options,
-				    const char * const usagestr[],
-				    enum parse_opt_flags flags);
+int parse_options(int argc, const char **argv, const char *prefix,
+		  const struct option *options,
+		  const char * const usagestr[],
+		  enum parse_opt_flags flags);
 
 NORETURN void usage_with_options(const char * const *usagestr,
 				 const struct option *options);