irb(main):004:0> s = " This is a multi-line\n   comment\n*/ And here's some other stuff."

# This is rue's
irb(main):005:0> s.scan(/(\n|.)*\*/)
=> [["\n"]]

# This is hoopy's
irb(main):008:0> s.scan(/(?:\n|.)*\*\//)
=> [" This is a multi-line\n   comment\n*/"]