- diffutils are dependency

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@41351 20353a03-c40f-0410-a6d1-a30d3c3de9de

buildout/README.txt

@@ -29,6 +29,7 @@ Requirements to build ERP5 Appliance are:
  * standard C and C++ library with development headers (glibc and libstdc++)
  * make
  * patch
+ * diff (also known as diffutils)
  * python (>=2.4) with development headers (to run buildout)
 
 Setup