patch 9.0.1405: missing check for out-of-memory

Problem:    Missing check for out-of-memory.
Solution:   Check for alloc() returning NULL pointer. (closes #12149)

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1405,
 /**/
     1404,
 /**/