package_manager: remove strings and migrate to direct arrays
When using subprocess call and check_output, it is better to use arrays
rather than strings when possible to avoid whitespace and quoting
problems.
[ YOCTO #9342 ]
(From OE-Core rev:
b12cec9a5ef14ecb02be7feec65508cf5d65c795)
Signed-off-by: Stephano Cetola <stephano.cetola@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
