patch 9.0.0046: reading past end of completion with duplicate match

Problem:    Reading past end of completion with duplicate match.
Solution:   Check string length
diff --git a/src/version.c b/src/version.c
index 75de2fc..de8e968 100644
--- a/src/version.c
+++ b/src/version.c
@@ -736,6 +736,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    46,
+/**/
     45,
 /**/
     44,