The following review has been posted through the commitfest application:
make installcheck-world: tested, passed
Implements feature: tested, passed
Spec compliant: not tested
Documentation: tested, passed
This is a handy feature, and the implementation looks good to me.
There might be some nit-picking about the vertical whitespace around
the code in added to fe-protocol3.c, but I'll leave that to the committer.
The new status of this patch is: Ready for Committer