Vim 8.1 release
Update version number and information. Fix a couple of tests.
diff --git a/src/proto/window.pro b/src/proto/window.pro
index e53123c..b21b463 100644
--- a/src/proto/window.pro
+++ b/src/proto/window.pro
@@ -27,7 +27,7 @@
int make_tabpages(int maxcount);
int valid_tabpage(tabpage_T *tpc);
int valid_tabpage_win(tabpage_T *tpc);
-void close_tabpage(tabpage_T *tpc);
+void close_tabpage(tabpage_T *tab);
tabpage_T *find_tabpage(int n);
int tabpage_index(tabpage_T *ftp);
void goto_tabpage(int n);