port echo adds whitespace after port names

[mohd-akram (Mohamed Akram)]

port echo seems to add a bunch of spaces after every port name. This can trip up some shell pipelines, eg. port echo bash | grep -x bash fails.

[jmroot (Joshua Root)]

This is for column alignment when there are versions and variants involved. Use -q if you need just port names.

[mohd-akram (Mohamed Akram)]

Thanks. I think this still might be worth fixing, trailing spaces are generally undesirable.