[PATCH] Fix urlencode format string on signed char.

Git credential fails with special char in password.
remote: Invalid username or password.
fatal: Authentication failed for

File ~/.git-credential contains badly urlencoded characters
%ffffffXX%ffffffYY instead of %XX%YY.

Add a cast to an unsigned char to fix urlencode use of %02x
on a char.

Signed-off-by: Julien Dusser <redacted>
---
 strbuf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/strbuf.c b/strbuf.c
index 323c49ceb..4d5a9ce55 100644
--- a/strbuf.c
+++ b/strbuf.c

@@ -658,7 +658,7 @@ static void strbuf_add_urlencode(struct strbuf *sb, const char *s, size_t len,
 		    (!reserved && is_rfc3986_reserved(ch)))
 			strbuf_addch(sb, ch);
 		else
-			strbuf_addf(sb, "%%%02x", ch);
+			strbuf_addf(sb, "%%%02x", (unsigned char)ch);
 	}
 }
 

-- 
2.15.1