[Bug]: getWifiBroadcast returns address with "/" in front

[buzmeg]

Platform

Android (possibly others)

Plugin

network_info_plus

Version

2.1.3

Flutter SDK

3.0.2

Steps to reproduce

Confirmed in #614 by @vbuberen

Code Sample

var wifiIPv4Broad = await ni.getWifiBroadcast();
log("IPv4Broad: $wifiIPv4Broad");

returns:

[log] IPv4Broad: /192.168.85.255

### Logs

Irrelevant as already confirmed

### Flutter Doctor

Irrelevant as already confirmed

[buzmeg]

Poke. Poke.