patch 9.0.1335: no test for bad use of spaces in help files

Problem:    No test for bad use of spaces in help files.
Solution:   Add checks for use of spaces in help files.  Ignore intentional
            spaces. (Hirohito Higashi, closes #11952)
diff --git a/src/version.c b/src/version.c
index c757629..d1dd656 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1335,
+/**/
     1334,
 /**/
     1333,