Vim 8.1 release
Update version number and information. Fix a couple of tests.
diff --git a/READMEdir/README_srcdos.txt b/READMEdir/README_srcdos.txt
index b9cb0e5..6acb652 100644
--- a/READMEdir/README_srcdos.txt
+++ b/READMEdir/README_srcdos.txt
@@ -1,8 +1,8 @@
-README_srcdos.txt for version 8.0 of Vim: Vi IMproved.
+README_srcdos.txt for version 8.1 of Vim: Vi IMproved.
See "README.txt" for general information about Vim.
See "README_dos.txt" for installation instructions for MS-DOS and MS-Windows.
-These files are in the runtime archive (vim80rt.zip).
+These files are in the runtime archive (vim81rt.zip).
The DOS source archive contains the files needed to compile Vim on MS-DOS or