access_http: fix unbalanced quotes

(cherry picked from commit 45ea8ad02597deb90cf6030e2c0e0a7d205a40e3)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/access/http.c

@@ -481,7 +481,7 @@ static int OpenWithCookies( vlc_object_t *p_this, const char *psz_access,
         }
     }
 
-    msg_Dbg( p_access, "http: server='%s' port=%d file='%s",
+    msg_Dbg( p_access, "http: server='%s' port=%d file='%s'",
              p_sys->url.psz_host, p_sys->url.i_port, p_sys->url.psz_path );
     if( p_sys->b_proxy )
     {