message: Fixed Windows batch script
diff: :: Helper script to create build.h.
  -
  +echo off
  set SRC_DIR=%cd%\src
  set CALL_DIR=%cd%
  cd
  cd %SRC_DIR%
  -dir
  echo on
  -echo "Creating build.h"
  +@echo Creating build.h
  -FOR /F %i in ('git describe --dirty') do set DESC=%i
  -echo "#define BUILD_DESC \"%DESC%\"" > build.sh
  +FOR /F "delims=" %%i IN ('git describe --dirty') DO set DESC=%%i
  +@echo #define BUILD_DESC "%DESC%" > build.h
  -FOR /F %i in ('git log -n 1 --format="%ci"') do set TIME=%i
  -echo "#define BUILD_DATE \"%TIME%\"" >> build.sh
  +FOR /F "delims=" %%j IN ('git log -n 1 --format^="%%ci"') DO set TIME=%%j
  +@echo #define BUILD_DATE "%TIME%" >> build.h
  -echo "Everything is OK"
  +@echo Created build.h with the following content:
  +type build.h
  cd %CALL_DIR%
  