updated for version 7.4.542

Problem:    Using a range for window and buffer commands has a few problems.
            Cannot specify the type of range for a user command.
Solution:   Add the -addr argument for user commands.  Fix problems. (Marcin
            Szamotulski)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    542,
 /**/
     541,
 /**/