util/strutil/strconv.go
func GraphLinkForExpression(expr string) string {
	escapedExpression := url.QueryEscape(expr)
	return fmt.Sprintf("/graph?g0.expr=%s&g0.tab=0", escapedExpression)
}
func GraphLinkForExpression(expr string) string {
	escapedExpression := url.QueryEscape(expr)
	return fmt.Sprintf("/graph?g0.expr=%s&g0.tab=0", escapedExpression)
}
// GraphLinkForExpression creates an escaped relative link to the graph view of
// the provided expression.