1.The file of "apt.conf.sample" is in the outdir, and outdir is assigned
by "os.path.join" with the params of ${D}, ${sysconfdir} and "apt". But
${sysconfdir} is an absolute dir and that let ${D} be discarded.
The following is the help on function os.path.join(a, *p):
Join two or more pathname components, inserting '/' as needed.
If any component is an absolute path, all previous path components
will be discarded.
Use oe.path.join instead which don't have this problem.
2. Create apt.conf.sample if it doesn't exist.
[YOCTO #3677]
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
