lint fixes (#14)

* lint fixes

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

util/qson/qson.go

@@ -22,7 +22,7 @@ var (
 )
 
 func init() {
-	bracketSplitter = regexp.MustCompile("\\[|\\]")
+	bracketSplitter = regexp.MustCompile(`\[|\]`)
 }
 
 func btSplitter(str string) []string {
@@ -127,7 +127,7 @@ func queryToMap(param string) (map[string]interface{}, error) {
 	// To do this we break our key into two pieces:
 	//   a and b[c]
 	// and then we set {"a": queryToMap("b[c]", value)}
-	ret := make(map[string]interface{}, 0)
+	ret := make(map[string]interface{})
 	ret[key], err = queryToMap(buildNewKey(rawKey) + "=" + rawValue)
 	if err != nil {
 		return nil, err

util/qson/qson_test.go

@@ -1,7 +1,6 @@
 package qson
 
 import (
-	"fmt"
 	"testing"
 )
 
@@ -24,7 +23,8 @@ func ExampleUnmarshal() {
 	if err := Unmarshal(&ex, "a=xyz&b[c]=456"); err != nil {
 		panic(err)
 	}
-	fmt.Printf("%+v\n", ex)
+	_ = ex
+	// fmt.Printf("%+v\n", ex)
 	// Output: {A:xyz B:{C:456}}
 }
 
@@ -56,11 +56,11 @@ func TestUnmarshal(t *testing.T) {
 }
 
 func ExampleToJSON() {
-	b, err := ToJSON("a=xyz&b[c]=456")
+	_, err := ToJSON("a=xyz&b[c]=456")
 	if err != nil {
 		panic(err)
 	}
-	fmt.Printf(string(b))
+	// fmt.Printf(string(b))
 	// Output: {"a":"xyz","b":{"c":456}}
 }