I can kind of understand why this did not make the cut:
https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=41d69e6d
(Add labels to help make psql's hidden queries more understandable)
... but I'm in favor (yes, somewhat selfishly to be honest) of listing all
changes, no matter how small. Is there a written criteria or guidelines for
these things? I think the bar is already low if we list things like
"improved tab completion", TBH.