Fix decoding of pid_t arguments of kill and tgkill syscalls
Fix decoding of pid_t arguments of kill and tgkill syscalls

* signal.c (SYS_FUNC(kill), SYS_FUNC(tgkill)): Print pid_t syscall
arguments using %d format.

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