Fix code style: extra whitespace before ()

Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Keith Packard <keithp@keithp.com>

dix/atom.c

@@ -213,5 +213,5 @@ InitAtoms(void)
     nodeTable[None] = (NodePtr)NULL;
     MakePredeclaredAtoms();
     if (lastAtom != XA_LAST_PREDEFINED)
-	AtomError ();
+	AtomError();
 }