Update emacs-pretest to 26.0.91 (#5146)
Update emacs-pretest to 26.0.91 (#5146)


pkq/homebrew-versions,rogeriopradoj/homebrew-versions,mahori/homebrew-cask-versions,Ngrd/homebrew-versions,Ngrd/homebrew-versions,caskroom/homebrew-versions,victorpopkov/homebrew-versions,lantrix/homebrew-versions,404NetworkError/homebrew-versions,pkq/homebrew-versions,FinalDes/homebrew-versions,rogeriopradoj/homebrew-versions,404NetworkError/homebrew-versions,FinalDes/homebrew-versions,mahori/homebrew-versions,lantrix/homebrew-versions,caskroom/homebrew-versions,victorpopkov/homebrew-versions