Fix typos.

scripts/win_wrapper.cmd

@@ -41,8 +41,8 @@ IF %MAJOR_PYTHON_VERSION% == 3 (
     )
 )
 
-ECHO Python: -->%MAJOR_PYTHON_VERSION%<-- -->%MINOR_PYTHON_VERSION%<--
-ECHO SDK -->%WINDOWS_SDK_VERSION%<-- 64? -->SET_SDK_64<--
+ECHO "Python: %MAJOR_PYTHON_VERSION%, %MINOR_PYTHON_VERSION%"
+ECHO "SDK %WINDOWS_SDK_VERSION%, 64? %SET_SDK_64%"
 
 IF %PYTHON_ARCH% == 64 (
     IF %SET_SDK_64% == Y (