config parsing: include file and line number in more errors

Before:
    $ pacman -Si pacman
    error: invalid value for 'SigLevel' : 'FooValue'

After:
    $ ./src/pacman/pacman -Si pacman
    error: config file /etc/pacman.conf, line 88: invalid value for 'SigLevel' : 'FooValue'

Signed-off-by: Dan McGee <dan@archlinux.org>

0 files changed, 0 insertions, 0 deletions