component/findutils: Version up

Extend PATH to make xzcat available.

component/findutils/buildout.cfg

 [buildout]
 extends =
   ../coreutils/buildout.cfg
+  ../xz-utils/buildout.cfg
 parts =
   findutils-output
 
 [findutils]
 recipe = slapos.recipe.cmmi
 shared = true
-url = http://ftp.debian.org/debian/pool/main/f/findutils/findutils_4.8.0.orig.tar.xz
-md5sum = eeefe2e6380931a77dfa6d9350b43186
+url = http://ftp.debian.org/debian/pool/main/f/findutils/findutils_4.9.0.orig.tar.xz
+md5sum = 4a4a547e888a944b2f3af31d789a1137
+environment =
+  PATH=${xz-utils:location}/bin:%(PATH)s
 
 [findutils-output]
 # Shared binary location to ease migration