Re: [PATCH v2 4/5] builtin/remote.c: add and use a REF_STATES_INIT

Use a new REF_STATES_INIT designated initializer instead of assigning
to the "strdup_strings" member of the previously memzero()'d version
of this struct.

The pattern of assigning to "strdup_strings" dates back to
211c89682ee (Make git-remote a builtin, 2008-02-29) (when it was
"strdup_paths"), i.e. long before we used anything like our current
established *_INIT patterns consistently.

Then in e61e0cc6b70 (builtin-remote: teach show to display remote
HEAD, 2009-02-25) and e5dcbfd9ab7 (builtin-remote: new show output
style for push refspecs, 2009-02-25) we added some more of these.

As it turns out we only initialized this struct three times, all the
other uses were of pointers to those initialized structs. So let's
initialize it in those three places, skip the memset(), and pass those
structs down appropriately.

Signed-off-by: Ævar Arnfjörð Bjarmason <redacted>
---
 builtin/remote.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/builtin/remote.c b/builtin/remote.c
index 7f88e6ce9de..160dd954f74 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c

@@ -344,6 +344,14 @@ struct ref_states {
 	int queried;
 };
 
+#define REF_STATES_INIT { \
+	.new_refs = STRING_LIST_INIT_DUP, \
+	.stale = STRING_LIST_INIT_DUP, \
+	.tracked = STRING_LIST_INIT_DUP, \
+	.heads = STRING_LIST_INIT_DUP, \
+	.push = STRING_LIST_INIT_DUP, \
+}

 static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 {
 	struct ref *fetch_map = NULL, **tail = &fetch_map;

@@ -355,9 +363,6 @@ static int get_ref_states(const struct ref *remote_refs, struct ref_states *stat
 			die(_("Could not get fetch map for refspec %s"),
 				states->remote->fetch.raw[i]);
 
-	states->new_refs.strdup_strings = 1;
-	states->tracked.strdup_strings = 1;
-	states->stale.strdup_strings = 1;