patch 9.0.1257: code style is not check in test scripts
Problem: Code style is not check in test scripts.
Solution: Add basic code style check for test files.
diff --git a/src/testdir/test_signals.vim b/src/testdir/test_signals.vim
index c37ea2a..4b6c734 100644
--- a/src/testdir/test_signals.vim
+++ b/src/testdir/test_signals.vim
@@ -133,7 +133,7 @@
sleep 100m
" We resume after the suspend. Sleep a bit for the signal to take effect,
- " also when running under valgrind.
+ " also when running under valgrind.
exe 'silent !kill -s CONT ' .. pid_vim
call WaitForAssert({-> assert_true(filereadable('XautoOut2'))})
sleep 10m