Update vendoring for github.com/beorn7/perks/quantile

vendor/github.com/beorn7/perks/LICENSE

@@ -0,0 +1,20 @@
+Copyright (C) 2013 Blake Mizerany
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

vendor/github.com/beorn7/perks/quantile/stream.go

@@ -133,7 +133,7 @@ func (s *Stream) Query(q float64) float64 {
 		if l == 0 {
 			return 0
 		}
-		i := int(float64(l) * q)
+		i := int(math.Ceil(float64(l) * q))
 		if i > 0 {
 			i -= 1
 		}

vendor/vendor.json

@@ -15,9 +15,10 @@
 			"revisionTime": "2016-05-31T23:09:58Z"
 		},
 		{
+			"checksumSHA1": "spyv5/YFBjYyZLZa1U2LBfDR8PM=",
 			"path": "github.com/beorn7/perks/quantile",
-			"revision": "b965b613227fddccbfffe13eae360ed3fa822f8d",
-			"revisionTime": "2015-02-23T14:51:52+01:00"
+			"revision": "4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9",
+			"revisionTime": "2016-08-04T10:47:26Z"
 		},
 		{
 			"path": "github.com/coreos/go-systemd/dbus",