fix man path
fix wrapper path

Index: mono/build/install.proj
--- mono/build/install.proj.orig
+++ mono/build/install.proj
@@ -134,12 +134,12 @@
             WorkingDirectory="$(MSBuildInstallBinDir)"
             Command="ln -s Roslyn/System.Reflection.Metadata.dll System.Reflection.Metadata.dll" />
 
-        <Exec Command="$(RepoRoot)\mono\build\gen_msbuild_wrapper.sh $(MonoInstallPrefix) $(MonoInstallPrefix)\bin" />
+        <Exec Command="$(RepoRoot)\mono\build\gen_msbuild_wrapper.sh ${TRUEPREFIX} $(MonoInstallPrefix)\bin" />
         <ItemGroup>
             <CopiedFiles Include="$(MonoInstallPrefix)\bin\msbuild" />
         </ItemGroup>
 
-        <Copy SourceFiles="$(RepoRoot)\mono\msbuild.1" DestinationFolder="$(MonoInstallPrefix)\share\man\man1">
+        <Copy SourceFiles="$(RepoRoot)\mono\msbuild.1" DestinationFolder="$(MonoInstallPrefix)\man\man1">
             <Output TaskParameter="CopiedFiles" ItemName="CopiedFiles" />
         </Copy>