caretLine = content.getLineCount() - 1;
void doContentEnd() {	// place caret at end of first line if receiver is in single 	// line mode. fixes 4820.	if (isSingleLine()) {		doLineEnd();	}	else {		int length = content.getCharCount();				if (caretOffset < length) {			caretOffset = length;			caretLine = content.getLineCount() - 1;			showCaret();		}	}}