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chomp 

        # String.chomp

(from ruby core)
---
    str.chomp(separator=$/)   -> new_str

---

Returns a new String with the given record separator removed from the
end of *str* (if present). If `$/` has not been changed from the default
Ruby record separator, then `chomp` also removes carriage return
characters (that is, it will remove `\n`, `\r`, and `\r\n`). If `$/` is
an empty string, it will remove all trailing newlines from the string.

    "hello".chomp                #=> "hello"
    "hello\n".chomp              #=> "hello"
    "hello\r\n".chomp            #=> "hello"
    "hello\n\r".chomp            #=> "hello\n"
    "hello\r".chomp              #=> "hello"
    "hello \n there".chomp       #=> "hello \n there"
    "hello".chomp("llo")         #=> "he"
    "hello\r\n\r\n".chomp('')    #=> "hello"
    "hello\r\n\r\r\n".chomp('')  #=> "hello\r\n\r"

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