title: Nuget '2.0.20180607160057-jenkins' is not a valid version string
body: <p>I have a scripted NuGet push that refuses to push my NuGet package:</p>
  <pre><code>&quot;%NUGET%&quot; push *.nupkg -Source &quot;%NUGETREPO%&quot;
  </code></pre>
  <p>The error I encounter is:</p>
  <pre><code>'2.0.20180607160057-jenkins' is not a valid version string.
  Parametername: value
  </code></pre>