Test fix.

.vscode/settings.json

@@ -1 +1,6 @@
-{}
+{
+    "go.testFlags": [
+        "-cover"
+    ],
+    "go.coverageOptions": "showBothCoveredAndUncoveredCode"
+}

flag.go

@@ -23,7 +23,7 @@
 
 package flagger
 
-// This structure represents addable flag for Flagger.
+// Flag represents addable flag for Flagger.
 type Flag struct {
 	// Flag name. It will be accessible using this name later.
 	Name string

flagger_test.go

@@ -251,6 +251,7 @@ func TestFlaggerGetStringFlag(t *testing.T) {
 	val, err := f.GetStringValue("teststringflag")
 	require.Nil(t, err)
 	require.NotEqual(t, "", val)
+	require.Equal(t, "superstring", val)
 }
 
 func TestFlaggerGetUnknownStringFlag(t *testing.T) {