provider/common: test failure

[Dave Cheney]

[LOG] 36.85478 DEBUG juju.environs.simplestreams finding products at path "streams/v1/com.ubuntu.cloud:released:imagemetadata.json"
[LOG] 36.85478 DEBUG juju.environs.httpstorage getting "images/streams/v1/com.ubuntu.cloud:released:imagemetadata.json" from storage
[LOG] 36.85478 DEBUG juju.environs.simplestreams metadata: &{map[com.ubuntu.cloud:server:12.04:amd64:{ 12.04 amd64 map[20141004:0xc2082b7aa0]} com.ubuntu.cloud:server:12.04:arch:{ 12.04 arch map[20141004:0xc2082b7c20]} com.ubuntu.cloud:server:12.04:ppc64:{ 12.04 ppc64 map[20141004:0xc2082b7da0]}] map[] Thu, 10 Apr 2014 13:37:27 +1000 products:1.0 com.ubuntu.cloud:custom}
supportedarchitectures_test.go:82:
    c.Assert(arches, gc.DeepEquals, []string{"amd64", "ppc64"})
... obtained []string = []string{"ppc64", "amd64"}
... expected []string = []string{"amd64", "ppc64"}

OOPS: 30 passed, 1 FAILED
--- FAIL: TestPackage (6.03 seconds)
FAIL
FAIL launchpad.net/juju-core/provider/common 6.155s

The test assumes supported architectures is an ordered list.