the '_strategy_command' in 'fetchparams.cli' did not expand the path of
every argument, but only the first one (being the command to be
executed).
i fixed the '_strategy_command' function to apply the 'expand_path'
function to every member of the commands list.
Easy to confuse when skimming through the tree.
But the real reason (for me) is that the tab-completion is not very
useful when two files start with the same prefix.