hnbgw: make cmdline options stronger than config file

Now that a config file gets parsed after the command line options, e.g. the
'logging timestamp 0' config item is stronger than a -T commandline option. So
rather store the cmdline options to take effect after config file parsing.

This adds a stupid 'log_disable_color = true' reverse boolean logic, which is
unavoidable if we want to use the same default cmdline options as osmo-nitb /
osmo-cscn.

Change-Id: I16ad55b173a443c36b71dc6b70f58695f6665312
1 file changed