syslog.c: use umove_or_printaddr and RVAL_DECODED
syslog.c: use umove_or_printaddr and RVAL_DECODED

* sysctl.c (sys_sysctl): Use umove_or_printaddr and RVAL_DECODED.

kapdop/android_external_strace,vrastogi/strace,kapdop/android_external_strace,MonkeyZZZZ/platform_external_strace,vrastogi/strace,vrastogi/strace,MonkeyZZZZ/platform_external_strace,MonkeyZZZZ/platform_external_strace,Saruta/strace,Distrotech/strace,Saruta/strace,cuviper/strace,kapdop/android_external_strace,vrastogi/strace,cuviper/strace,Distrotech/strace,MonkeyZZZZ/platform_external_strace,Saruta/strace,MonkeyZZZZ/platform_external_strace,Distrotech/strace,cuviper/strace,cuviper/strace,Distrotech/strace,kapdop/android_external_strace,Saruta/strace,Distrotech/strace,vrastogi/strace,Saruta/strace,kapdop/android_external_strace,cuviper/strace