ConfigFile - Means this flag should be interprited as the name of
a config file to read in at this point in option processing.
Implies HasArg.
- ArbItem - Means the item is an arbitary configuration string of
+ ArbItem - Means the item is an arbitrary configuration string of
the form item=value, where item is passed directly
to the configuration class.
The default, if the flags are 0 is to use Boolean