commit 97a2af39cd3249c6cbe5a5c59bc24167632d39ad
author Bram Moolenaar <Bram@vim.org> Tue Jan 28 22:52:48 2020 +0100
committer Bram Moolenaar <Bram@vim.org> Tue Jan 28 22:52:48 2020 +0100
tree 955011b497c516ac279a6242f93ba332e5b32b15
parent 58ceca5cae75ed839b20a89c5fa9998f02552f58

patch 8.2.0168: Coverity warning for assigning NULL to an option

Problem:    Coverity warning for assigning NULL to an option.
Solution:   Use empty string instead of NULL.

src/testdir/test_vim9_expr.vim

diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index 321dbf9..8776e07 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -644,6 +644,8 @@
   set ts=8
   set grepprg=some\ text
   assert_equal('some text', &grepprg)
+  &grepprg = test_null_string()
+  assert_equal('', &grepprg)
   set grepprg&
 enddef