Creation of authfiles in the form:

user1:keyhandle1:...:keyhandl2:...
user2:keyhandleX:...

Is tedious, esp given that the. tooling doesn't produce strings in this format, Instead, allow users to appear in multiple lines an collect those auth tokens:

user1:keyhandle1:...
user2:keyhandleX:...
user1:keyhandle2:...