[PATCH] strbuf_readlink semantics update.

[Pierre Habouzit <madcoder@debian.org>]

strbuf_* operations are meant to append their results to a current buffer
rather than _replace_ its content. Modify strbuf_readlink accordingly.

Current callers only operate on empty buffers at the moment and this
semantic change doesn't break any current code.

Signed-off-by: Pierre Habouzit <madcoder@debian.org>
---
 strbuf.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/strbuf.c b/strbuf.c
index bdf4954..254a7ee 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -299,12 +299,12 @@ int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint)
 		int len;
 
 		strbuf_grow(sb, hint);
-		len = readlink(path, sb->buf, hint);
+		len = readlink(path, sb->buf + sb->len, hint);
 		if (len < 0) {
 			if (errno != ERANGE)
 				break;
 		} else if (len < hint) {
-			strbuf_setlen(sb, len);
+			strbuf_setlen(sb, sb->len + len);
 			return 0;
 		}
 
-- 
1.6.1.rc4.304.g3da087