patch 9.0.1816: configure: sed uses non-portable regex

Problem:  configure: sed uses non-portable regex
Solution: use '*' modifier instead of '\?' in regex
          for luajit version detection

closes: #12954

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: ichizok <gclient.gaap@gmail.com>

src/version.c

@@ -699,6 +699,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1816,
 /**/
     1815,
 /**/