File at-3.1.8-queue-nice-level.patch of Package at

--- atd.c
+++ atd.c
@@ -383,7 +383,7 @@
 
 	PRIV_START
 
-	    nice((tolower((int) queue) - 'a' + 1) * 2);
+	    nice((tolower((int) queue) - 'a' ) );
 
 	    if (initgroups(pentry->pw_name, pentry->pw_gid))
 		perr("Cannot delete saved userids");