diff -ru 1/usr.bin/grep/grep.c 2/usr.bin/grep/grep.c
--- 1/usr.bin/grep/grep.c	2019-05-13 17:23:05.940222011 +0800
+++ 2/usr.bin/grep/grep.c	2019-05-13 17:23:44.656116175 +0800
@@ -123,7 +123,7 @@
 int	 filebehave = FILE_STDIO;
 int	 devbehave = DEV_READ;		/* -D: handling of devices */
 int	 dirbehave = DIR_READ;		/* -dRr: handling of directories */
-int	 linkbehave = LINK_READ;	/* -OpS: handling of symlinks */
+int	 linkbehave = LINK_SKIP;	/* -OpS: handling of symlinks */
 
 bool	 dexclude, dinclude;	/* --exclude-dir and --include-dir */
 bool	 fexclude, finclude;	/* --exclude and --include */