correct comment

and disable built-in rules

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

test/Rules.mak

@@ -5,9 +5,7 @@
 # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
 #
 
-#
-# Note: This does not read the top level Rules.mak file
-#
+.SUFFIXES:
 
 top_builddir ?= ../