Merge pull request swiftlang#16 from compnerd/icu-schema-guid

Windows: correct ICU wixproj

Author: compnerd

platforms/Windows/icu.wixproj

@@ -4,13 +4,10 @@
     <WixTargetsPath Condition=" '$(WixTargetsPath)' == '' ">$(MSBuildExtensionsPath)\Microsoft\WiX\v3.x\Wix.targets</WixTargetsPath>
   </PropertyGroup>
 
-  <PropertyGroup>
-  </PropertyGroup>
-
   <PropertyGroup>
     <OutputName>icu</OutputName>
     <OutputType>Package</OutputType>
-    <ProjectGuid></ProjectGuid>
+    <ProjectGuid>07dd2e66-b7f5-40a7-bed1-b3dd2a187c00</ProjectGuid>
     <SchemaVersion>2.0</SchemaVersion>
     <ProductVersion Condition=" '$(ProductVersion)' == '' ">0.0.0</ProductVersion>
     <ProductVersion>0.0.0</ProductVersion>