toolchain-shar-extract: ignore timestamp on decompress
Installing on centos7, which the extended version of the
buildtools tarball is supposed to fix and with reproducable
builds turned on, all the time stamps are for epoch. This
results in the following output for every file:
tar: ./sysroots/x86_64-pokysdk-linux/usr/include/c++/9.2.0/cstdalign: implausibly old time stamp 1969-12-31 16:00:00
tar: ./sysroots/x86_64-pokysdk-linux/usr/lib/libstdc++.so.6: implausibly old time stamp 1969-12-31 16:00:00
Ignore the timestamps during the uncompession step.
Signed-off-by: Jeremy Puhlman <jpuhlman@mvista.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
