Get rid of push_back in favor of emplace_back

Change-Id: I4a0096441ed725eb21e42eb9cc17a173929e3788
diff --git a/src/libyang_utils.cpp b/src/libyang_utils.cpp
index a7dd682..756f88c 100644
--- a/src/libyang_utils.cpp
+++ b/src/libyang_utils.cpp
@@ -68,7 +68,7 @@
             }
         }
         if (it->schema()->nodetype() == LYS_LIST) {
-            res.push_back({stripXPathPrefix(it->path()), special_{SpecialValue::List}});
+            res.emplace_back(stripXPathPrefix(it->path()), special_{SpecialValue::List});
         }
         if (it->schema()->nodetype() == LYS_LEAF || it->schema()->nodetype() == LYS_LEAFLIST) {
             libyang::Data_Node_Leaf_List leaf(it);