Index: sys/kern/kern_proc.c
===================================================================
--- sys/kern/kern_proc.c
+++ sys/kern/kern_proc.c
@@ -436,11 +436,8 @@
  * Begin a new session if required.
  */
 int
-enterpgrp(p, pgid, pgrp, sess)
-	register struct proc *p;
-	pid_t pgid;
-	struct pgrp *pgrp;
-	struct session *sess;
+enterpgrp(register struct proc *p, pid_t pgid, struct pgrp *pgrp,
+    struct session *sess)
 {
 
 	sx_assert(&proctree_lock, SX_XLOCKED);
@@ -501,9 +498,7 @@
  * Move p to an existing process group
  */
 int
-enterthispgrp(p, pgrp)
-	register struct proc *p;
-	struct pgrp *pgrp;
+enterthispgrp(register struct proc *p, struct pgrp *pgrp)
 {
 
 	sx_assert(&proctree_lock, SX_XLOCKED);
@@ -528,9 +523,7 @@
  * Move p to a process group
  */
 static void
-doenterpgrp(p, pgrp)
-	struct proc *p;
-	struct pgrp *pgrp;
+doenterpgrp(struct proc *p, struct pgrp *pgrp)
 {
 	struct pgrp *savepgrp;
 
@@ -623,9 +616,7 @@
 }
 
 static void
-pgadjustjobc(pgrp, entering)
-	struct pgrp *pgrp;
-	int entering;
+pgadjustjobc(struct pgrp *pgrp, int entering)
 {
 
 	PGRP_LOCK(pgrp);