Fix whitespace

Author: David-Engel

src/Microsoft.Data.SqlClient/netcore/src/Microsoft.Data.SqlClient.csproj

@@ -648,7 +648,7 @@
     <Compile Include="Microsoft\Data\SqlClient\SqlDelegatedTransaction.cs" />
     <Compile Include="Microsoft\Data\SqlClient\SqlInternalConnection.cs" />
     <Compile Include="Microsoft\Data\SqlClient\SqlInternalConnectionTds.cs" />
-    <Compile Include="Microsoft\Data\SqlClient\SqlTransaction.cs"/>
+    <Compile Include="Microsoft\Data\SqlClient\SqlTransaction.cs" />
     <Compile Include="Microsoft\Data\SqlClient\SqlUtil.cs" />
     <Compile Include="Microsoft\Data\SqlClient\TdsParser.cs" />
     <Compile Include="Microsoft\Data\SqlClient\TdsParser.RegisterEncoding.cs" />