message: Small llvm path win fix
diff: @@ -37,7 +37,7 @@ steps:
  curl -OL https://github.com/wasmerio/windows-llvm-build/releases/download/v8.0.0/llvm-8.0.0-install.zip
  7z x llvm-8.0.0-install.zip
  LLVM_PATH=`pwd`/llvm-8.0.0-install
  - LLVM_PATH_WIN=$SYSTEM_DEFAULTWORKINGDIRECTORY\llvm-8.0.0-install
  + LLVM_PATH_WIN=$SYSTEM_DEFAULTWORKINGDIRECTORY\\llvm-8.0.0-install
  echo "##vso[task.prependpath]$LLVM_PATH/bin"
  echo "##vso[task.setvariable variable=LLVM_SYS_80_PREFIX]$LLVM_PATH_WIN"
  # chocolatey install cmake --installargs 'ADD_CMAKE_TO_PATH=System'
  