trivial: update arrayToObject versionadded

kay-kim · kay-kim · commit c9b8a96510d9 · 2018-11-27T11:31:55.000-05:00
diff --git a/source/reference/operator/aggregation/arrayToObject.txt b/source/reference/operator/aggregation/arrayToObject.txt
@@ -15,7 +15,7 @@ Definition
 
 .. expression:: $arrayToObject
 
-   .. versionadded:: 3.6
+   .. versionadded:: 3.4.4
 
    Converts an array into a single document; the array must be
    either:
