updated for version 7.3.606

Problem:    CTRL-P completion has a problem with multi-byte characters.
Solution:   Check for next character being NUL properly.  (Yasuhiro Matsumoto)

src/version.c

@@ -714,6 +714,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    606,
 /**/
     605,
 /**/