sha3: code shrink

function                                             old     new   delta
sha3_hash                                            155     101     -54

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
syslogd: do not segfault on parse error when using default config. Closes 5762

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
grep: fix grep -Fw not respecting the -w option. Closes 5792

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Merge git://busybox.net/busybox