in core/src/main/java/org/apache/jsieve/ScriptCoordinate.java [132:145]
public String addStartLineAndColumn(CharSequence message) {
final StringBuilder buffer;
if (message instanceof StringBuilder) {
buffer = (StringBuilder) message;
} else {
buffer = new StringBuilder(message.toString());
}
buffer.append(" Line ");
buffer.append(startLineNumber);
buffer.append(" column ");
buffer.append(startColumnNumber);
buffer.append(".");
return buffer.toString();
}