patch 8.2.0666: Ruby test fails on MS-Windows

Problem:    Ruby test fails on MS-Windows.
Solution:   Remove the "maintainer" line. (Ken Takata, closes #6015)
diff --git a/src/version.c b/src/version.c
index a04f4b3..7a563d1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    666,
+/**/
     665,
 /**/
     664,