patch 7.4.1244

Problem:    The channel functions don't sort together.
Solution:   Use a common "ch_" prefix.

src/version.c

@@ -742,6 +742,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1244,
 /**/
     1243,
 /**/