Fix getItems not returning correct leaf_data_ variant

Change-Id: I7d008606be7a6f874ecb2e7c22638ea04d4f7639
diff --git a/src/netconf_access.cpp b/src/netconf_access.cpp
index 3d54443..e53237b 100644
--- a/src/netconf_access.cpp
+++ b/src/netconf_access.cpp
@@ -37,7 +37,7 @@
     case LY_TYPE_STRING:
         return std::string(value->string());
     case LY_TYPE_ENUM:
-        return std::string(value->enm()->name());
+        return enum_{std::string(value->enm()->name())};
     default: // TODO: implement all types
         return "(can't print)"s;
     }