patch 8.0.0204: compiler warns for uninitialized variable

Problem:    Compiler warns for uninitialized variable. (Tony Mechelynck)
Solution:   When skipping set "id" to -1.

Author: brammool

src/syntax.c

@@ -6049,7 +6049,9 @@ get_id_list(
 	    }
 	    else if (name[1] == '@')
 	    {
-		if (!skip)
+		if (skip)
+		    id = -1;
+		else
 		    id = syn_check_cluster(name + 2, (int)(end - p - 1));
 	    }
 	    else

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    204,
 /**/
     203,
 /**/