Found something of an issue when using yargs.showHelp()
L761

it seems that when self._parseArgs(processArgs) is called, it is not saving the results to self.parsed

if you put a breakpoint on this line: L1012, you will see that the self.parsed property contains the appropriate items.

however, after this function is done, on L762,
self.parsed is set back to false instead of an object. this leads to their being a parse error:

TypeError: Cannot convert undefined or null to object
.concat(Object.keys(yargs.parsed.newAliases) || [])

under function: usage.showHelp( L240

Thanks! 👍