The class PkgsList returns a dictionary with all the installed
packages, because the data structure is a dictionary there is
needed to format the data in order to write to a file.
The function format_pkg_list returns a formated sting with all
packages installed. The output will depend on the requested format
when calling the function.
[YOCTO #7427]
Signed-off-by: Mariano Lopez <mariano.lopez@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
