chdir.c: make use of RVAL_DECODED

* chdir.c (sys_chdir): Update for RVAL_DECODED.

Author: ldv-alt

chdir.c

@@ -2,8 +2,7 @@
 
 SYS_FUNC(chdir)
 {
-	if (entering(tcp)) {
-		printpath(tcp, tcp->u_arg[0]);
-	}
-	return 0;
+	printpath(tcp, tcp->u_arg[0]);
+
+	return RVAL_DECODED;
 }