src/vs/editor/contrib/multicursor/browser/multicursor.ts/announceCursorChange
function announceCursorChange(previousCursorState: CursorState[], cursorState: CursorState[]): void {
	const cursorDiff = cursorState.filter(cs => !previousCursorState.find(pcs => pcs.equals(cs)));
	if (cursorDiff.length >= 1) {
		const cursorPositions = cursorDiff.map(cs => `line ${cs.viewState.position.lineNumber} column ${cs.viewState.position.column}`).join(', ');
		const msg = cursorDiff.length === 1 ? nls.localize('cursorAdded', "Cursor added: {0}", cursorPositions) : nls.localize('cursorsAdded', "Cursors added: {0}", cursorPositions);
		status(msg);
	}
}