One line per item in non-interactive output

[mkuratczyk]

Before - multiple lines and a space as the first character of the row/line:

$ rabbitmqadmin --non-interactive list queues
 qq  /  quorum  true  false  false  x-queue-type: "quorum"  rabbit-1@K6L59PF0JR  running  rabbit-1@K6L59PF0JR  rabbit-1@K6L59PF0JR  rabbit-1@K6L59PF0JR  26844  0  0    0  0  0 
                                                                                                               rabbit-2@K6L59PF0JR  rabbit-2@K6L59PF0JR                         
                                                                                                               rabbit-3@K6L59PF0JR  rabbit-3@K6L59PF0JR          

With this PR:

qq / quorum true false false x-queue-type: "quorum", rabbit-1@K6L59PF0JR running rabbit-1@K6L59PF0JR rabbit-1@K6L59PF0JR,rabbit-2@K6L59PF0JR,rabbit-3@K6L59PF0JR rabbit-1@K6L59PF0JR,rabbit-2@K6L59PF0JR,rabbit-3@K6L59PF0JR 29860 0 0  0 0 0

This enables common shell scripting techniques, eg:

$ rabbitmqadmin --non-interactive list queues | cut -w -f 1
qq1
qq2
qq3

[michaelklishin]

Good find. It will apply to all multi-line values, so lets see how it goes.