patch 7.4.916

Problem:    When running out of memory while copying a dict memory may be
            freed twice. (ZyX)
Solution:   Do not call the garbage collector when running out of memory.

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    916,
 /**/
     915,
 /**/