Merge pull request #709 from sbcgua/master

Implementation of lif_object~changed_by for W3xx

src/zabapgit_object_w3xx.prog.abap

@@ -75,7 +75,17 @@ CLASS lcl_object_w3super IMPLEMENTATION.
   ENDMETHOD.  "lif_object~has_changed_since
 
   METHOD lif_object~changed_by.
-    rv_user = c_user_unknown. " todo
+
+    SELECT SINGLE chname INTO rv_user
+      FROM wwwdata
+      WHERE relid = ms_key-relid
+      AND   objid = ms_key-objid
+      AND   srtf2 = 0.
+
+    IF sy-subrc IS NOT INITIAL OR rv_user IS INITIAL.
+      rv_user = c_user_unknown.
+    ENDIF.
+
   ENDMETHOD.
 
   METHOD lif_object~jump.