[PATCH 1/2 jk/war-on-sprintf] read_branches_file: plug a FILE* leak

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The earlier rewrite f28e3ab2 (read_branches_file: simplify string handling)
of read_branches_file() lost an fclose() call. Put it back.

As on Windows files that are open cannot be removed, the leak manifests in
a failure of 'git remote rename origin origin' when the remote's URL is
specified in .git/branches/origin, because by the time that the command
attempts to remove this file, it is still open.

Signed-off-by: Johannes Sixt <j6t@xxxxxxxx>
---
 remote.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/remote.c b/remote.c
index 1101f82..fb16153 100644
--- a/remote.c
+++ b/remote.c
@@ -282,6 +282,7 @@ static void read_branches_file(struct remote *remote)
 		return;
 
 	strbuf_getline(&buf, f, '\n');
+	fclose(f);
 	strbuf_trim(&buf);
 	if (!buf.len) {
 		strbuf_release(&buf);
-- 
2.3.2.245.gb5bf9d3

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