public SignatureEvaluator(int suggestedBufferSize,boolean humanReadable){
  this(suggestedBufferSize,humanReadable,new SignatureRules());
}

public SignatureEvaluator ( int suggestedBufferSize , boolean humanReadable ) { this ( suggestedBufferSize , humanReadable , new SignatureRules ( ) ) ; }
save the stringbuilder some work and guess how big your signature might be . uses the default signaturerules ( rules for determining what to include in a signature ) .
