54450 (tweaked): docs: improve _describe documentation
54448: completion: update base64, btrfs, emulate, tree
unposted: tests: Y01: fix test broken by _echo
unposted: completion: add missing + to some short-option specs
unposted: completion: add _echo
54437 (tweaked): lex: fix <-> in parameter flags
54424: ZSH_EXEPATH: improve documentation, add test
54423 (tweaked): compinit: improve and document -w