Missing Tagger Entry

[Stephen & Linda Smith <ischis2@xxxxxxx>]

I am getting the following warning when runing a git fsck command against tag 
v0.99.

$ git --version
git version 2.18.0

$ git fsck
checking object directories: 100% (256/256), done.
warning in tag d6602ec5194c87b0fc87103ca4d67251c76f233a: missingTaggerEntry: 
invalid format - expected 'tagger' line
Checking objects: 100% (254339/254339), done.
Checking connectivity: 254329, done.