Merge 'v1.5.2' into master

Gopkg.lock

@@ -310,7 +310,8 @@
 [[projects]]
   name = "github.com/davecgh/go-spew"
   packages = ["spew"]
-  revision = "04cdfd42973bb9c8589fd6a731800cf222fde1a9"
+  revision = "346938d642f2ec3594ed81d874461961cd0faa76"
+  version = "v1.1.0"
 
 [[projects]]
   branch = "master"
@@ -966,7 +967,8 @@
 [[projects]]
   name = "github.com/pmezard/go-difflib"
   packages = ["difflib"]
-  revision = "d8ed2627bdf02c080bf22230dbb337003b7aba2d"
+  revision = "792786c7400a136282c1664665ae0a8db921c6c2"
+  version = "v1.0.0"
 
 [[projects]]
   name = "github.com/prometheus/client_golang"
@@ -1046,7 +1048,8 @@
 [[projects]]
   name = "github.com/stretchr/objx"
   packages = ["."]
-  revision = "cbeaeb16a013161a98496fad62933b1d21786672"
+  revision = "facf9a85c22f48d2f52f2380e4efce1768749a89"
+  version = "v0.1"
 
 [[projects]]
   name = "github.com/stretchr/testify"
@@ -1055,7 +1058,8 @@
     "mock",
     "require"
   ]
-  revision = "4d4bfba8f1d1027c4fdbe371823030df51419987"
+  revision = "12b6f73e6084dad08a7c6e575284b177ecafbc71"
+  version = "v1.2.1"
 
 [[projects]]
   branch = "master"
@@ -1492,6 +1496,6 @@
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "f87576548de74d86b0e93a28551b97317addba5731345338272fdbb8a22ad77f"
+  inputs-digest = "865659187f3824cb57b8ff8805e3114b806c67ee0ffe9cbc6db237e4038edee6"
   solver-name = "gps-cdcl"
   solver-version = 1