Update vendoring for github.com/prometheus/common/model

vendor/github.com/prometheus/common/model/value.go

@@ -129,11 +129,8 @@ func (s *Sample) Equal(o *Sample) bool {
 	if !s.Timestamp.Equal(o.Timestamp) {
 		return false
 	}
-	if s.Value.Equal(o.Value) {
-		return false
-	}
 
-	return true
+	return s.Value.Equal(o.Value)
 }
 
 func (s Sample) String() string {

vendor/vendor.json

@@ -560,8 +560,8 @@
 		{
 			"checksumSHA1": "vopCLXHzYm+3l5fPKOf4/fQwrCM=",
 			"path": "github.com/prometheus/common/model",
-			"revision": "dd2f054febf4a6c00f2343686efb775948a8bff4",
-			"revisionTime": "2017-01-08T23:12:12Z"
+			"revision": "3007b6072c17c8d985734e6e19b1dea9174e13d3",
+			"revisionTime": "2017-02-19T00:35:58+01:00"
 		},
 		{
 			"checksumSHA1": "ZbbESWBHHcPUJ/A5yrzKhTHuPc8=",