patch 8.2.1432: various inconsistencies in test files
Problem: Various inconsistencies in test files.
Solution: Add modelines where they were missing. Use Check commands instead
of silently skipping over tests. Adjust indents and comments.
(Ken Takata, closes #6695)
diff --git a/src/testdir/test_preview.vim b/src/testdir/test_preview.vim
index 1bf1d3f..b7b908e 100644
--- a/src/testdir/test_preview.vim
+++ b/src/testdir/test_preview.vim
@@ -1,4 +1,5 @@
" Tests for the preview window
+
source check.vim
CheckFeature quickfix