Correctly compute dates by using delayed variables

softwares/FWSUpdates/bin/sync.bat

@@ -161,13 +161,13 @@ IF %CHANGES% GTR 0 (
   IF ERRORLEVEL 1 (
     reg add "HKLM\Software\FWS\Updates" /v ChangesAvailableSince /t REG_DWORD /d %NOW% /f
 	SET /A SINCE=%NOW%
-	SET /A MAX=%SINCE%+%MAX_REPORT%*86400
+	SET /A MAX=%NOW%+%MAX_REPORT%*86400
   ) ELSE (
-    FOR /F %%A IN ('reg query "HKLM\Software\FWS\Updates" /v ChangesAvailableSince') DO SET /A SINCE=%%A
+    FOR /F "tokens=3 delims= " %%A IN ('reg query "HKLM\Software\FWS\Updates" /v ChangesAvailableSince') DO SET /A SINCE=%%A
-    SET /A MAX=%SINCE%+%MAX_REPORT%*86400
+    SET /A MAX=!SINCE!+%MAX_REPORT%*86400
-    IF %NOW% GTR %MAX% add "HKLM\Software\FWS\Updates" /v RunOnShutdown /t REG_DWORD /d 1 /f
+    IF %NOW% GTR !MAX! reg add "HKLM\Software\FWS\Updates" /v RunOnShutdown /t REG_DWORD /d 1 /f
   )
-  SET /A DELTA=%NOW%-%SINCE%
+  SET /A DELTA=%NOW%-!SINCE!
   goto copylogs
 ) ELSE (
   reg delete "HKLM\Software\FWS\Updates" /v ChangesAvailableSince /f