Use correct env var for version.

appveyor.yml

@@ -14,17 +14,17 @@ build:
     mkdir tools
     NuGet.exe restore TimberWinR.sln
 build:
-  verbosity: minimal
-after_build:
+  verbosity: minimal
+after_build:
 - ps: >-
     cat chocolateyInstall.ps1.template|%{$_-replace "\$\{version\}",$env:VERSION_FROM_BRANCH} > tools\chocolateyInstall.ps1
     cat chocolateyUninstall.ps1.template|%{$_-replace "\$\{version\}",$env:VERSION_FROM_BRANCH} > tools\chocolateyUninstall.ps1
     cat tools\chocolateyUninstall.ps1
-artifacts:
+artifacts:
 - path: .\*.nupkg
-  name: NuGet
+  name: NuGet
 - path: TimberWinR.ServiceHost\bin\*\*.dll
-  name: Dlls
+  name: Dlls
 - path: TimberWinR.ServiceHost\bin\*\*.exe
   name: Exes
 - path: TimberWix\bin\*\*.msi