patch 9.0.1337: yuck files are not recognized

Problem:    Yuck files are not recognized.
Solution:   Add a filetype pattern for yuck files. (Amaan Qureshi,
            closes #12033)
diff --git a/src/version.c b/src/version.c
index fd8e887..a665a2a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1337,
+/**/
     1336,
 /**/
     1335,