patch 8.1.0711: test files still use function!
Problem: Test files still use function!.
Solution: Remove the exclamation mark. Fix overwriting a function.
diff --git a/src/testdir/test_eval_func.vim b/src/testdir/test_eval_func.vim
index 4fcd042..09d2f62 100644
--- a/src/testdir/test_eval_func.vim
+++ b/src/testdir/test_eval_func.vim
@@ -1,6 +1,6 @@
" Vim script used in test_eval.in. Needed for script-local function.
-func! s:Testje()
+func s:Testje()
return "foo"
endfunc
let Bar = function('s:Testje')