for-each-ref: Fix --format=%(subject) for log message without newlines

'git for-each-ref --format=%(subject)' currently returns an empty string
if the log message does not contain a newline.

This patch teaches 'git for-each-ref' to return the entire log message
(instead of an empty string) if there is no newline in the log message.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

diff --git a/builtin-for-each-ref.c b/builtin-for-each-ref.c
index 21e92bbcb577c0361df51bd81e6fb5ab546619ea..be9dc9e3f0dbbd9bdda20db7fd5c5fad8e427bd2 100644 (file)
--- a/builtin-for-each-ref.c
+++ b/builtin-for-each-ref.c
@@ -321,8 +321,8 @@ static const char *find_wholine(const char *who, int wholen, const char *buf, un
 static const char *copy_line(const char *buf)
 {
        const char *eol = strchr(buf, '\n');
-       if (!eol)
-               return "";
+       if (!eol) // simulate strchrnul()
+               eol = buf + strlen(buf);
        return xmemdupz(buf, eol - buf);
 }