Include <err.h> where needed. Add $FreeBSD$ where missing.

usr.bin/xlint/lint1/main1.c

@@ -42,6 +42,7 @@ __FBSDID("$FreeBSD$");
 #include <string.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <err.h>
 #include <errno.h>
 #include <limits.h>
 

usr.bin/xlint/lint1/mem1.c

@@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/types.h>
 #include <sys/mman.h>
 #include <sys/param.h>
+#include <err.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>

usr.bin/xlint/lint2/chk.c

@@ -36,8 +36,10 @@
 #if defined(__RCSID) && !defined(lint)
 __RCSID("$NetBSD: chk.c,v 1.15 2002/01/21 19:49:52 tv Exp $");
 #endif
+__FBSDID("$FreeBSD$");
 
 #include <ctype.h>
+#include <err.h>
 #include <limits.h>
 #include <stdlib.h>
 

usr.bin/xlint/lint2/emit2.c

@@ -36,6 +36,9 @@
 #if defined(__RCSID) && !defined(lint)
 __RCSID("$NetBSD: emit2.c,v 1.8 2002/01/21 19:49:52 tv Exp $");
 #endif
+__FBSDID("$FreeBSD$");
+
+#include <err.h>
 
 #include "lint2.h"
 

usr.bin/xlint/lint2/hash.c

@@ -35,11 +35,13 @@
 #if defined(__RCSID) && !defined(lint)
 __RCSID("$NetBSD: hash.c,v 1.7 2002/01/21 19:49:52 tv Exp $");
 #endif
+__FBSDID("$FreeBSD$");
 
 /*
  * XXX Really need a generalized hash table package
  */
 
+#include <err.h>
 #include <limits.h>
 #include <stddef.h>
 #include <stdlib.h>

usr.bin/xlint/lint2/mem2.c

@@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/param.h>
 #include <sys/types.h>
 #include <sys/mman.h>
+#include <err.h>
 #include <unistd.h>
 #include <string.h>
 

usr.bin/xlint/lint2/read.c

@@ -39,6 +39,7 @@ __RCSID("$NetBSD: read.c,v 1.12 2002/01/21 19:49:52 tv Exp $");
 __FBSDID("$FreeBSD$");
 
 #include <ctype.h>
+#include <err.h>
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>