patch 8.0.0057

Problem:    Tests fail without the 'keymap' features.
Solution:   Check for feature in test.

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    57,
 /**/
     56,
 /**/