# File lib/mcollective/util.rb, line 486
    def self.str_to_bool(val)
      clean_val = val.to_s.strip
      if clean_val =~ /^(1|yes|true|y|t)$/i
        return  true
      elsif clean_val =~ /^(0|no|false|n|f)$/i
        return false
      else
        raise("Cannot convert string value '#{clean_val}' into a boolean.")
      end
    end