patch 8.0.1181: tests using Vim command fail on MS-Windows

Problem:    Tests using Vim command fail on MS-Windows.
Solution:   Do not add quotes around the Vim command.
diff --git a/src/version.c b/src/version.c
index 21e9e00..0ca3f05 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1181,
+/**/
     1180,
 /**/
     1179,