patch 8.1.0541: help message in dosinst.c is outdated

Problem:    Help message in dosinst.c is outdated.
Solution:   Update the comment. (Ken Takata, closes #3626)
diff --git a/src/dosinst.c b/src/dosinst.c
index 002bae4..f73576f 100644
--- a/src/dosinst.c
+++ b/src/dosinst.c
@@ -2535,13 +2535,14 @@
 "------------\n"
 "(this choice is only available when creating a _vimrc file)\n"
 "1. Vim can run in Vi-compatible mode.  Many nice Vim features are then\n"
-"   disabled.  In the not-Vi-compatible mode Vim is still mostly Vi\n"
-"   compatible, but adds nice features like multi-level undo.  Only\n"
-"   choose Vi-compatible if you really need full Vi compatibility.\n"
-"2. Running Vim with some enhancements is useful when you want some of\n"
+"   disabled.  Only choose Vi-compatible if you really need full Vi\n"
+"   compatibility.\n"
+"2. Vim runs in not-Vi-compatible mode.  Vim is still mostly Vi compatible,\n"
+"   but adds nice features like multi-level undo.\n"
+"3. Running Vim with some enhancements is useful when you want some of\n"
 "   the nice Vim features, but have a slow computer and want to keep it\n"
 "   really fast.\n"
-"3. Syntax highlighting shows many files in color.  Not only does this look\n"
+"4. Syntax highlighting shows many files in color.  Not only does this look\n"
 "   nice, it also makes it easier to spot errors and you can work faster.\n"
 "   The other features include editing compressed files.\n"
 ,