For example:
1) ls --headers {allow-resource-service-restart <TAB>
doesn't give you the '='

2) ls --headers {allow-resource-service-restart=true; <TAB>
list you the commands one can type...not at al an header.

3) NPE caused by WFCORE-1617
ls --headers {allow-resource-service-restart=t<TAB> ==> NPE

Completion should properly complete each header.