patch 8.0.0617: hardcopy test hangs on MS-Windows

Problem:    Hardcopy test hangs on MS-Windows.
Solution:   Check the postscript feature is supported.
diff --git a/src/version.c b/src/version.c
index eb46948..4fddbb9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    617,
+/**/
     616,
 /**/
     615,