patch 9.0.1351: Dhall files are not recognized

Problem:    Dhall files are not recognized.
Solution:   Add patterns for Dhall files. (Amaan Qureshi, closes #12052)
diff --git a/src/version.c b/src/version.c
index f4dbd16..6f2bd4c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1351,
+/**/
     1350,
 /**/
     1349,