Update NB.GV LKG

Author: AArnott

src/NerdBank.GitVersioning.Tests/NerdBank.GitVersioning.Tests.csproj

@@ -23,7 +23,7 @@
     <PackageReference Include="Xunit.Combinatorial" Version="1.1.12" />
     <PackageReference Include="xunit" Version="2.1.0" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="1.1.1" />
-    <PackageReference Include="Nerdbank.GitVersioning.LKG" Version="1.5.108-g37118a0bd6" />
+    <PackageReference Include="Nerdbank.GitVersioning.LKG" Version="1.6.20-beta-gfea83a8c9e" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.1.0" />
   </ItemGroup>
 </Project>

src/NerdBank.GitVersioning/NerdBank.GitVersioning.csproj

@@ -8,7 +8,7 @@
     <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
     <PackageReference Include="System.Diagnostics.Process" Version="4.3.0" Condition=" '$(TargetFramework)' == 'netstandard1.3' " />
     <PackageReference Include="Validation" Version="2.3.7" />
-    <PackageReference Include="Nerdbank.GitVersioning.LKG" Version="1.5.108-g37118a0bd6" />
+    <PackageReference Include="Nerdbank.GitVersioning.LKG" Version="1.6.20-beta-gfea83a8c9e" />
     <PackageReference Include="NuProj.Common" Version="0.11.14-beta" />
   </ItemGroup>
 </Project>

src/Nerdbank.GitVersioning.NuGet/project.json

@@ -5,7 +5,7 @@
   "dependencies": {
     "LibGit2Sharp": "0.24.7-g9fca61fdda",
     "Nerdbank.GitVersioning.LKG": {
-      "version": "1.5.108-g37118a0bd6",
+      "version": "1.6.20-beta-gfea83a8c9e",
       "suppressParent": "none"
     },
     "ReadOnlySourceTree": {

src/Nerdbank.GitVersioning.Tasks/Nerdbank.GitVersioning.Tasks.csproj

@@ -7,7 +7,7 @@
     <PackageReference Include="Microsoft.Build.Tasks.Core" Version="15.1.0-preview-000458-02" Condition=" '$(TargetFramework)' == 'netstandard1.3' " />
     <PackageReference Include="Microsoft.Build.Tasks.Core" Version="14.3" Condition=" '$(TargetFramework)' == 'net45' " />
     <PackageReference Include="PInvoke.MSCorEE" Version="0.3.152" Condition=" '$(TargetFramework)' == 'net45' " />
-    <PackageReference Include="Nerdbank.GitVersioning.LKG" Version="1.5.108-g37118a0bd6" />
+    <PackageReference Include="Nerdbank.GitVersioning.LKG" Version="1.6.20-beta-gfea83a8c9e" />
     <PackageReference Include="NuProj.Common" Version="0.11.14-beta" />
   </ItemGroup>
   <ItemGroup>