fix：单元测试补充

sliceUtil/in_test.go

@@ -8,7 +8,7 @@ import (
 func TestInStr(t *testing.T) {
 	var slices1 = []string{"a", "b", "c"}
 	var val1 = "a"
-	res1 := InStr(val1, slices1)
-	res2 := InStr("abc", slices1)
+	res1 := InStrSlices(val1, slices1)
+	res2 := InStrSlices("abc", slices1)
 	fmt.Println("结果判定", res1, res2)
 }

sliceUtil/merge_test.go

@@ -10,7 +10,7 @@ func TestMergeStr(t *testing.T) {
 	var s2 = []string{"a"}
 	var s3 = []string{"a"}
 
-	res := MergeStr(s1, s2, s3)
+	res := MergeStrSlices(s1, s2, s3)
 
 	fmt.Printf("%+v", res)
 }