New value of tag is not overridden properly

[vkhichar]

statsd/options.go

Line 154 in 7fea3f0

oldTag.V = newTag.V

[joeycumines]

Fixed this one, I'd make a PR but it's dead so it's in my fork https://github.com/joeycumines/statsd / joeycumines@111b368