Per POSIX <grp.h> doesn't require <sys/types.h>.

Submitted by:	ache

include/grp.h

@@ -42,6 +42,9 @@
 #ifndef _GRP_H_
 #define	_GRP_H_
 
+#include <sys/types.h>
+#include <sys/cdefs.h>
+
 #ifndef _POSIX_SOURCE
 #define	_PATH_GROUP		"/etc/group"
 #endif
@@ -53,8 +56,6 @@ struct group {
 	char	**gr_mem;		/* group members */
 };
 
-#include <sys/cdefs.h>
-
 __BEGIN_DECLS
 struct group *getgrgid __P((gid_t));
 struct group *getgrnam __P((const char *));

lib/libc/gen/getgrent.3

@@ -47,7 +47,6 @@
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
-.In sys/types.h
 .In grp.h
 .Ft struct group *
 .Fn getgrent void