Use /var/spool instead of /usr/spool and /var/mail instead of /usr/mail

cde/programs/dtwm/Dtwm.defs.src

@@ -181,16 +181,10 @@ Dtwm*VersionDialog_popup*columns:	%|nls-6-40^columns|
 !#
 !# Specify the file name to use to check the mail indicator
 !#
-!# Default is /usr/mail/$LOGNAME.
+!# Default is /var/mail/$LOGNAME.
 !#
 !####
-#ifdef __osf__
-Dtwm*Mail*fileName:	     			/usr/spool/mail/$LOGNAME
-#elif defined(linux)
 Dtwm*Mail*fileName:	     			/var/mail/$LOGNAME
-#else
-!# Dtwm*Mail*fileName:	     			/usr/mail/$LOGNAME
-#endif
 
 !####
 !#