[PATCH] slim main()

[Michael E Brown]

The attached patch contains no functional changes. It simply introduces
a few helper functions and slims down main().

def setup_default_config_opts(config_opts):
	move the setup of default config_opts to a helper function

def set_config_opts_per_cmdline(config_opts, options):
	All of the logic that sets config_opts stuff based on cmdline options
is here.

def do_clean(config_opts, init=0):
	Consolidate clean/init handling into one function
	
def do_run_cmd(config_opts, cmd, raw_chroot=0):
	Consolidate chroot/shell handling into one function

def ensure_filetype_srpm(srpms):
	Check all cmdline srpm args to ensure they exist and are srpms	

def do_rebuild(config_opts, srpms):
	rebuild logic.

Please apply.