patch 8.1.0037: cannot easily append lines to another buffer
Problem: Cannot easily append lines to another buffer.
Solution: Add appendbufline().
diff --git a/src/testdir/test_edit.vim b/src/testdir/test_edit.vim
index 3af8c4c..ab2fe7c 100644
--- a/src/testdir/test_edit.vim
+++ b/src/testdir/test_edit.vim
@@ -527,7 +527,7 @@
" Tab in completion mode
let path=expand("%:p:h")
new
- call setline(1, [path."/", ''])
+ call setline(1, [path. "/", ''])
call feedkeys("Arunt\<c-x>\<c-f>\<tab>\<cr>\<esc>", 'tnix')
call assert_match('runtest\.vim', getline(1))
%d