# Find the line that begins with `COMMENT`
summary = File.readlines("Makefile").select { |line| line =~ /^COMMENT/ }

# Attempt to clean it up
=> ["COMMENT=\tcreate & extract files from DOS .ARC files\n"]
summary = summary.to_s
=> "[\"COMMENT=\\tcreate & extract files from DOS .ARC files\\n\"]"
summary = summary.gsub(/COMMENT=\t/, "")
=> "[\"\create & extract files from DOS .ARC files\\n\"]"