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>
ifconfig: do not accept "ifconfig eth0 up 1.2.3.4/17" (ip with mask). Closes 5786

function                                             old     new   delta
ifconfig_main                                       1221    1237     +16

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
mdev: fix mode of dir1 in =dir1/dir2/file rule

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Merge remote-tracking branch 'bb/master' into sm-jb-mr1