githooks documentation: add a note about the +x mode

diff --git a/builtin-fmt-merge-msg.c b/builtin-fmt-merge-msg.c
index c6324dc795bfd778470fbbe7b0720ce9ff83a34e..df18f4070f3877ed907476f2179590001ec972b7 100644 (file)
--- a/builtin-fmt-merge-msg.c
+++ b/builtin-fmt-merge-msg.c
@@ -358,7 +358,7 @@ int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix)
        };
 
        FILE *in = stdin;
-       struct strbuf input, output;
+       struct strbuf input = STRBUF_INIT, output = STRBUF_INIT;
        int ret;
 
        git_config(fmt_merge_msg_config, NULL);
@@ -372,10 +372,8 @@ int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix)
                        die("cannot open %s", inpath);
        }
 
-       strbuf_init(&input, 0);
        if (strbuf_read(&input, fileno(in), 0) < 0)
                die("could not read input file %s", strerror(errno));
-       strbuf_init(&output, 0);
 
        ret = fmt_merge_msg(merge_summary, &input, &output);
        if (ret)