minor comment about variable descriptions in README

svn path=/trunk/kernel/source/linux-kernel-2.6.12/; revision=3430

debian/rules

@@ -1,6 +1,6 @@
 #!/usr/bin/make -f
 #
-# Required variables
+# Required variables.  See README for a description of the variables.
 # 
 version  := $(shell dpkg-parsechangelog | sed -n 's/^Source: linux-kernel-\(.\+\)$$/\1/p')
 major_v  := $(wordlist 1,1,$(subst ., ,$(version)))
@@ -16,6 +16,9 @@ major    := $(major_v).$(minor_v)
 srcver   := $(shell dpkg-parsechangelog | awk '/^Version:/ {print $$2}')
 release  := $(version)-$(ltver)
 uver     := $(subst .,_,$(version))
+blah:
+	echo $(version)
+	echo $(major)
 #
 # Construct depends and provides for the linux-tree
 #