[PATCH] branch: reset instead of release a strbuf

[Stefan Beller <sbeller@google.com>]

Our documentation advises to not re-use a strbuf, after strbuf_release
has been called on it. Use the proper reset instead.

Currently 'strbuf_release' releases and re-initializes the strbuf, so it
is safe, but slow. 'strbuf_reset' only resets the internal length variable,
such that this could also be accounted for as a micro-optimization.

Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
---
 builtin/branch.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/builtin/branch.c b/builtin/branch.c
index b998e16d0c..71ed1c7036 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -217,7 +217,7 @@ static int delete_branches(int argc, const char **argv, int force, int kinds,
 		if (!head_rev)
 			die(_("Couldn't look up commit object for HEAD"));
 	}
-	for (i = 0; i < argc; i++, strbuf_release(&bname)) {
+	for (i = 0; i < argc; i++, strbuf_reset(&bname)) {
 		char *target = NULL;
 		int flags = 0;
 
@@ -282,8 +282,9 @@ static int delete_branches(int argc, const char **argv, int force, int kinds,
 	}
 
 	free(name);
+	strbuf_release(&bname);
 
-	return(ret);
+	return ret;
 }
 
 static int calc_maxwidth(struct ref_array *refs, int remote_bonus)
-- 
2.14.0.rc0.3.g6c2e499285