patch 8.2.0073: initializing globals with COMMA is clumsy

Problem:    Initializing globals with COMMA is clumsy.
Solution:   Use INIT2(), INIT3(), etc.

src/version.c

@@ -742,6 +742,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    73,
 /**/
     72,
 /**/