Change printargs_lu and printargs_ld to return RVAL_DECODED
Change printargs_lu and printargs_ld to return RVAL_DECODED

* syscall.c (printargs_lu, printargs_ld): Return RVAL_DECODED.

Saruta/strace,Saruta/strace,cuviper/strace,Saruta/strace,Saruta/strace,Saruta/strace,cuviper/strace,cuviper/strace,cuviper/strace,cuviper/strace