Extracted prettyString from toString() method to new method prettyString()

treedatastructure/build.gradle

@@ -15,7 +15,7 @@ android {
         minSdkVersion 15
         targetSdkVersion 29
         versionCode 1
-        versionName "1.2.0"
+        versionName "1.2.1"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         consumerProguardFiles 'consumer-rules.pro'

treedatastructure/src/main/java/com/github/adriankuta/datastructure/tree/TreeNode.kt

@@ -91,6 +91,10 @@ open class TreeNode<T>(val value: T) : Iterable<TreeNode<T>>, ChildDeclarationIn
     }
 
     override fun toString(): String {
+        return value.toString()
+    }
+
+    fun prettyString(): String {
         val stringBuilder = StringBuilder()
         print(stringBuilder, "", "")
         return stringBuilder.toString()