patch 9.1.0758: it's possible to set an invalid key to 'wildcharm'

Problem:  it's possible to set an invalid key to 'wildcharm'
Solution: error out, if the 'wildcharm' value is an invalid key
          (Milly)

closes: #15787

Signed-off-by: Milly <milly.ca@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 2f01df8..047db75 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    758,
+/**/
     757,
 /**/
     756,