Fix buffer size; should hold 2 32-bit integers in hex = 16 chars + terminating

zero, so should be 17 bytes, not 9.

Originally committed as revision 22786 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/httpauth.c

@@ -187,7 +187,7 @@ static char *make_digest_auth(HTTPAuthState *state, const char *username,
     DigestParams *digest = &state->digest_params;
     int len;
     uint32_t cnonce_buf[2];
-    char cnonce[9];
+    char cnonce[17];
     char nc[9];
     int i;
     char A1hash[33], A2hash[33], response[33];