# File lib/brakeman/checks/check_execute.rb, line 93
  def dangerous_open_arg? exp
    if string_interp? exp
      # Check for input at start of string
      exp[1] == "" and
        node_type? exp[2], :evstr and
        has_immediate_user_input? exp[2]
    else
      has_immediate_user_input? exp
    end
  end