patch 7.4.1312

Problem:    sock_T is not defined without the +channel feature.
Solution:   Always define it.

src/version.c

@@ -747,6 +747,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1312,
 /**/
     1311,
 /**/