libbb: fix parsing of "10101010" date/time form

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
libbb: if opening /dev/loopN returns ENXIO, don't try N++.

function                                             old     new   delta
set_loop                                             639     635      -4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
iplink: fix build with kernel versions prior to 2.6.23

Signed-off-by: Eugene Rudoy <gene.devel@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
man: parse "DEFINE pager" in config

function                                             old     new   delta
man_main                                             789     844     +55

Signed-off-by: John Spencer <maillist-busybox@barfooze.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
less: accept and ignore -s

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>