chaddr.no_args:
	Error: no argument
	_ARG0_ command syntax is
	   chaddr old-address new-address

chaddr.same_args:
	Error: invalid arguments since old-address == new-address
	_ARG0_ command syntax is
	   chaddr old-address new-address

chaddr.invalid_addr:
	Error: You are not <_ARG0_>! Do not change any other than yourself.

chaddr.from.oldaddr:
	Please send the request from your old-address
