patch 8.1.1768: man plugin changes setting in current window

Problem:    Man plugin changes setting in current window.
Solution:   Set options later. (Jason Franklin)
diff --git a/src/version.c b/src/version.c
index 496a2ee..166b17c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -778,6 +778,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1768,
+/**/
     1767,
 /**/
     1766,