Trim command line input

[anx-ag]

Hey,

we stumbled upon an issue today where mmctl would throw strange error message when trying to bulk add users to a channel. At the end it turns out that the input file format had \r\n line endings.

# od -c demo.txt
0000000   s   o   m   e   o   n   e   @   s   o   m   e   w   h   e   r
0000020   e   .   c   o   m  \r  \n

The error message when trying to add this user via mmctl then was:

# cat demo.txt | xargs -L1 mmctl channel users add main:change-management
'an't find user '[email protected]

After removing the carriage returns from the input file, it worked without issues, but I think it would be good to just strip/trim the command line input of mmctl and remove possible carriage returns directly (I think that there's no situation where you would want to work with them anyways).

Thanks, Alex