patch 8.1.1023: may use NULL pointer when indexing a blob

Problem:    May use NULL pointer when indexing a blob. (Coverity)
Solution:   Break out of loop after using index on blob

src/version.c

@@ -779,6 +779,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1023,
 /**/
     1022,
 /**/