fuzz: use "fuzz" directory instead of "examples"

Makefile

@@ -18,15 +18,15 @@ fuzz-prepare-typ:
 fuzz-prepare-setters:
 	go-fuzz-build -func FuzzSetters -o stun-setters-fuzz.zip github.com/gortc/stun
 fuzz-msg:
-	go-fuzz -bin=./stun-msg-fuzz.zip -workdir=examples/stun-msg
+	go-fuzz -bin=./stun-msg-fuzz.zip -workdir=fuzz/stun-msg
 fuzz-typ:
-	go-fuzz -bin=./stun-typ-fuzz.zip -workdir=examples/stun-typ
+	go-fuzz -bin=./stun-typ-fuzz.zip -workdir=fuzz/stun-typ
 fuzz-setters:
-	go-fuzz -bin=./stun-setters-fuzz.zip -workdir=examples/stun-setters
+	go-fuzz -bin=./stun-setters-fuzz.zip -workdir=fuzz/stun-setters
 fuzz-test:
 	go test -tags gofuzz -run TestFuzz -v .
 fuzz-reset-setters:
-	rm -f -v -r stun-setters-fuzz.zip examples/stun-setters
+	rm -f -v -r stun-setters-fuzz.zip fuzz/stun-setters
 lint:
 	@echo "linting on $(PROCS) cores"
 	@gometalinter \

examples/README.md

@@ -1,3 +0,0 @@
-# Fuzzer corpus
-
-examples directory contains corpus for fuzzer.

fuzz/README.md

@@ -0,0 +1,3 @@
+# Fuzzer corpus
+
+fuzz directory contains corpus for fuzzer.

fuzz_test.go

@@ -21,7 +21,7 @@ func TestMessageCrash2(t *testing.T) {
 
 func corpus(t *testing.T, function, typ string) [][]byte {
 	var data [][]byte
-	p := filepath.Join("examples", function, typ)
+	p := filepath.Join("fuzz", function, typ)
 	f, err := os.Open(p)
 	if err != nil {
 		if os.IsNotExist(err) {