secure urls + remove -k from in-doc curl command

Library/Homebrew/cask/lib/hbc/cli/home.rb

Library/Homebrew/cask/lib/hbc/url.rb

Library/Homebrew/dev-cmd/aspell-dictionaries.rb

Library/Homebrew/dev-cmd/pull.rb

Library/Homebrew/diagnostic.rb

Library/Homebrew/extend/os/mac/hardware/cpu.rb

Library/Homebrew/keg_relocate.rb

Library/Homebrew/manpages/brew-cask.1.md

Library/Homebrew/test/cask/cli/home_spec.rb

Library/Homebrew/test/cask/download_strategy_spec.rb

Library/Homebrew/vendor/macho/macho/utils.rb

Library/Homebrew/version.rb

docs/Gems,-Eggs-and-Perl-Modules.md

docs/Python-for-Formula-Authors.md

docs/_layouts/index.html

docs/brew.1.html

manpages/brew-cask.1

manpages/brew.1