patch 8.1.1366: using expressions in a modeline is unsafe
Problem: Using expressions in a modeline is unsafe.
Solution: Disallow using expressions in a modeline, unless the
'modelineexpr' option is set. Update help, add more tests.
diff --git a/src/option.h b/src/option.h
index 7a10bb9..082ff9b 100644
--- a/src/option.h
+++ b/src/option.h
@@ -631,6 +631,7 @@
#ifdef FEAT_SPELL
EXTERN char_u *p_msm; /* 'mkspellmem' */
#endif
+EXTERN long p_mle; /* 'modelineexpr' */
EXTERN long p_mls; /* 'modelines' */
EXTERN char_u *p_mouse; /* 'mouse' */
#ifdef FEAT_GUI