updated for version 7.3.538

Problem:    'efm' does not handle Tabs in pointer lines.
Solution:   Add Tab support. Improve tests. (Lech Lorens)

src/version.c

@@ -714,6 +714,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    538,
 /**/
     537,
 /**/