Merge pull request #1429 from mandarg/fix-few-typos

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

Library/Homebrew/cmd/unpack.rb

Library/Homebrew/dev-cmd/audit.rb

Library/Homebrew/download_strategy.rb

Library/Homebrew/formula.rb

Library/Homebrew/migrator.rb

docs/brew.1.html

manpages/brew-cask.1

manpages/brew.1