[NTOSKRNL] Allow more chars in ExpTagAllowPrint().

Dedicated to Mark

Author: HeisSpiter

ntoskrnl/mm/ARM3/expool.c

@@ -468,7 +468,8 @@ ExpTagAllowPrint(CHAR Tag)
     if ((Tag >= 'a' && Tag <= 'z') ||
         (Tag >= 'A' && Tag <= 'Z') ||
         (Tag >= '0' && Tag <= '9') ||
-        Tag == ' ')
+        Tag == ' ' || Tag == '=' ||
+        Tag == '?' || Tag == '@')
     {
         return TRUE;
     }