Sources/ArgumentParser/Completions/BashCompletionsGenerator.swift (4 lines):
	- line 15: // TODO: Add a check to see if the command is installed where we expect?
	- line 146: // TODO: Make this work for @Arguments
	- line 193: // TODO: Use '_filedir' when available
	- line 194: // FIXME: Use the extensions array


Sources/ArgumentParser/Parsable Types/ParsableArguments.swift (1 line):
	- line 110: // TODO: this should be a "wrong command" message


Sources/ArgumentParser/Completions/CompletionsGenerator.swift (1 line):
	- line 50: // FIXME: This retrieves the user's preferred shell, not necessarily the one currently in use.


Sources/ArgumentParser/Usage/UsageGenerator.swift (1 line):
	- line 340: //TODO: review this message once environment values are supported.


Sources/ArgumentParser/Parsable Properties/OptionGroup.swift (1 line):
	- line 36: // FIXME: Adding this property works around the crasher described in