[packagekit] [RFC PATCH] Implement GOption option parsing for pkcon and pkmon

[James Bowes]

Hi all:

The three attached patches implement goption argument parsing for
pkcon and pkmon, adding --verbose and --version.

An overview of the patches:

0001 - GOption parsing for pkmon. Pretty straightforward.
0002 - set a GError for parse_multiple_options rather than showing
usage directly. This
           helps displaying the usage from goption in main() for the next patch.
0003 - GOption parsing for pkmon. Note that the verbose and debug subcommands
           are replaced by the -v/--verbose option.

$ git diff --stat master
 client/pk-console.c |  140 +++++++++++++++++++++++++++++---------------------
 client/pk-monitor.c |   25 +++++++++-
 2 files changed, 105 insertions(+), 60 deletions(-)

Comments/flames appreciated.

-James
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