patch 9.0.0021: invalid memory access when adding word to spell word listv9.0.0021

Problem:    Invalid memory access when adding word with a control character to
            the internal spell word list.
Solution:   Disallow adding a word with control characters or a trailing
            slash.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/version.c b/src/version.c
index 26cb768a82..23798ee560 100644
--- a/src/version.c
+++ b/src/version.c
@@ -736,6 +736,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    21,
+/**/
     20,
 /**/
     19,