libarchive: open_zipped() does not need to check extensions for e.g. gzip

We only need to check for signature-less extensions,
currently only .lzma. The rest can be happily autodetected.

This fixes "zcat FILE_WITHOUT_GZ_EXT" case, among others.

Change-Id: I2d52e398e2422265ba2ef530f9b2edfb20affc6f
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
ash: in bash compat mode, always export $SHLVL

function                                             old     new   delta
ash_main                                            1437    1442      +5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
libbb: fix parsing of "10101010" date/time form

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>
nc: fix option bit positions. Closes 6926

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Merge remote-tracking branch 'cm/cm-11.0' into HEAD