Update go dependencies

vendor/github.com/google/gofuzz/README.md

@@ -14,21 +14,21 @@ This is useful for testing:
 Import with ```import "github.com/google/gofuzz"```
 
 You can use it on single variables:
-```
+```go
 f := fuzz.New()
 var myInt int
 f.Fuzz(&myInt) // myInt gets a random value.
 ```
 
 You can use it on maps:
-```
+```go
 f := fuzz.New().NilChance(0).NumElements(1, 1)
 var myMap map[ComplexKeyType]string
 f.Fuzz(&myMap) // myMap will have exactly one element.
 ```
 
 Customize the chance of getting a nil pointer:
-```
+```go
 f := fuzz.New().NilChance(.5)
 var fancyStruct struct {
   A, B, C, D *string
@@ -37,7 +37,7 @@ f.Fuzz(&fancyStruct) // About half the pointers should be set.
 ```
 
 You can even customize the randomization completely if needed:
-```
+```go
 type MyEnum string
 const (
         A MyEnum = "A"