[PATCH 2/3] diff: let prep_parse_options() return parseopt array

[René Scharfe <l.s.r@xxxxxx>]

prep_parse_options() sets the parseopts member of struct diff_options.
Let it return the pointer instead and have its caller do the assignment
instead and rename the function to get_diff_parseopts() to reflect that
change.  This allows using it in other places and with other variables.

Signed-off-by: René Scharfe <l.s.r@xxxxxx>
---
 diff.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/diff.c b/diff.c
index e01129f0ea..e469d5d2a0 100644
--- a/diff.c
+++ b/diff.c
@@ -4615,7 +4615,7 @@ static void run_checkdiff(struct diff_filepair *p, struct diff_options *o)
 	builtin_checkdiff(name, other, attr_path, p->one, p->two, o);
 }

-static void prep_parse_options(struct diff_options *options);
+static struct option *get_diff_parseopts(struct diff_options *options);

 void repo_diff_setup(struct repository *r, struct diff_options *options)
 {
@@ -4663,7 +4663,7 @@ void repo_diff_setup(struct repository *r, struct diff_options *options)
 	options->color_moved = diff_color_moved_default;
 	options->color_moved_ws_handling = diff_color_moved_ws_default;

-	prep_parse_options(options);
+	options->parseopts = get_diff_parseopts(options);
 }

 static const char diff_status_letters[] = {
@@ -5419,7 +5419,7 @@ static int diff_opt_rotate_to(const struct option *opt, const char *arg, int uns
 	return 0;
 }

-static void prep_parse_options(struct diff_options *options)
+static struct option *get_diff_parseopts(struct diff_options *options)
 {
 	struct option parseopts[] = {
 		OPT_GROUP(N_("Diff output format options")),
@@ -5689,8 +5689,7 @@ static void prep_parse_options(struct diff_options *options)
 		OPT_END()
 	};

-	ALLOC_ARRAY(options->parseopts, ARRAY_SIZE(parseopts));
-	memcpy(options->parseopts, parseopts, sizeof(parseopts));
+	return parse_options_dup(parseopts);
 }

 struct option *add_diff_options(const struct option *parseopts,
--
2.38.1