Reverted build change to use VersionPrefix

* Inconisent approaches in the Sinks.  Appears that version prefix and
build script is best approach.

Author: merbla

Build.ps1

@@ -12,7 +12,7 @@ if(Test-Path .\artifacts) {
 
 $branch = @{ $true = $env:APPVEYOR_REPO_BRANCH; $false = $(git symbolic-ref --short -q HEAD) }[$env:APPVEYOR_REPO_BRANCH -ne $NULL];
 $revision = @{ $true = "{0:00000}" -f [convert]::ToInt32("0" + $env:APPVEYOR_BUILD_NUMBER, 10); $false = "local" }[$env:APPVEYOR_BUILD_NUMBER -ne $NULL];
-$suffix = @{ $true = ""; $false = "-$($branch.Substring(0, [math]::Min(10,$branch.Length)))-$revision"}[$branch -eq "master" -and $revision -ne "local"]
+$suffix = @{ $true = ""; $false = "$($branch.Substring(0, [math]::Min(10,$branch.Length)))-$revision"}[$branch -eq "master" -and $revision -ne "local"]
 $commitHash = $(git rev-parse --short HEAD)
 $buildSuffix = @{ $true = "$($suffix)-$($commitHash)"; $false = "$($branch)-$($commitHash)" }[$suffix -ne ""]
 

src/Serilog.Sinks.Splunk/Serilog.Sinks.Splunk.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <Description>The Splunk Sink for Serilog</Description>
-    <VersionPrefix>2.1.3</VersionPrefix>
+    <VersionPrefix>2.2.0</VersionPrefix>
     <Authors>Matthew Erbs, Serilog Contributors</Authors>
     <TargetFrameworks>net45;netstandard1.1</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
@@ -13,7 +13,6 @@
     <PackageProjectUrl>https://github.com/serilog/serilog-sinks-splunk</PackageProjectUrl>
     <PackageLicenseUrl>http://www.apache.org/licenses/LICENSE-2.0</PackageLicenseUrl>
     <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
-    <Version>2.2.0$(VersionSuffix)</Version>
   </PropertyGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'net45' ">