[PATCH] http-push: fix xml_entities() string parsing overrun

xml_entities() in http-push.c did not properly stop at the end of the string being examined, which would occasionally cause nonsense to be appended to escaped URL strings and result in failed DAV XML queries

Signed-off-by: Seth Hunter <redacted>
---
 http-push.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/http-push.c b/http-push.c
index 8cc8ee0..00e83dc 100644
--- a/http-push.c
+++ b/http-push.c

@@ -193,6 +193,8 @@ static char *xml_entities(char *s)
 		case '&':
 			strbuf_addstr(&buf, "&");
 			break;
+		case 0:
+			return strbuf_detach(&buf, NULL);
 		}
 		s++;
 	}

-- 
1.6.3.3