public String getSuffix(int fromNotIncluding) {
        if (fromNotIncluding < selector.size() - 1) {
            return "/" + toString(fromNotIncluding + 1, selector.size());
        }
        return "";
    }
<p>Returns the suffix of this hop's selector from, but not including, the
given index.</p>

@param fromNotIncluding The index from which to generate suffix.
@return The suffix after the index.
messagebus/src/main/java/com/yahoo/messagebus/routing/Hop.java