Remove unused variable.

It's not clear how to return the number of conflicts.  Always return 0
upon success, let's not call it the number of conflicts.
Set DEBUG_LEVEL to the highest specified value (conf or CLI).
Take two: honor behavior specified in the man page

Revert previous attempt at fixing issue and explicitly set the
debug_level after getopt(3) parses the CLI and after pkg_ini() reads
the config file.
Take two: honor behavior specified in the man page

Revert previous attempt at fixing issue and explicitly set the
debug_level after getopt(3) parses the CLI and after pkg_ini() reads
the config file.
Merge branch 'master' of github.com:sean-/pkg
Merge pull request #1108 from sean-/master

Fix behavior in accordance to man page