truncate.c: make use of RVAL_DECODED

* truncate.c (sys_truncate, sys_truncate64, sys_ftruncate,
sys_ftruncate64): Update for RVAL_DECODED.

Author: ldv-alt

truncate.c

@@ -2,36 +2,32 @@
 
 SYS_FUNC(truncate)
 {
-	if (entering(tcp)) {
-		printpath(tcp, tcp->u_arg[0]);
-		tprintf(", %lu", tcp->u_arg[1]);
-	}
-	return 0;
+	printpath(tcp, tcp->u_arg[0]);
+	tprintf(", %lu", tcp->u_arg[1]);
+
+	return RVAL_DECODED;
 }
 
 SYS_FUNC(truncate64)
 {
-	if (entering(tcp)) {
-		printpath(tcp, tcp->u_arg[0]);
-		printllval(tcp, ", %llu", 1);
-	}
-	return 0;
+	printpath(tcp, tcp->u_arg[0]);
+	printllval(tcp, ", %llu", 1);
+
+	return RVAL_DECODED;
 }
 
 SYS_FUNC(ftruncate)
 {
-	if (entering(tcp)) {
-		printfd(tcp, tcp->u_arg[0]);
-		tprintf(", %lu", tcp->u_arg[1]);
-	}
-	return 0;
+	printfd(tcp, tcp->u_arg[0]);
+	tprintf(", %lu", tcp->u_arg[1]);
+
+	return RVAL_DECODED;
 }
 
 SYS_FUNC(ftruncate64)
 {
-	if (entering(tcp)) {
-		printfd(tcp, tcp->u_arg[0]);
-		printllval(tcp, ", %llu", 1);
-	}
-	return 0;
+	printfd(tcp, tcp->u_arg[0]);
+	printllval(tcp, ", %llu", 1);
+
+	return RVAL_DECODED;
 }