lib/oe/patch.py: Don't return command stderr from runcmd function
If a function returns any stderr it will be passed to extractPatches and
used as path to patch.
For example subprocess command output can be:
| sh: warning: setlocale: LC_ALL: cannot change locale (en_US.UTF-8)
| /tmp/oepatchhuqle8fj/0001-foo.patch
| /tmp/oepatchhuqle8fj/0002-bar.patch
that will result in:
| FileNotFoundError: [Errno 2] No such file or directory: 'sh:'
To fix this I separated output, made the function return stdout and
print stderr only in case of command error.
(From OE-Core rev:
482589e2cc7c3ddeefb0a0fb98d97a9cbb18c9ec)
Signed-off-by: Tomasz Dziendzielski <tomasz.dziendzielski@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit
5e2450731c1f70fb72af0b8349905b359d3cd2b1)
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
