[gthumb] folder tree: rename a function to avoid confusion

[Paolo Bacchilega <paobac src gnome org>]

commit 0c85c544e50af05a7c712e8dd11dcb4faa912ef4
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Mon Nov 4 09:03:25 2019 +0100

    folder tree: rename a function to avoid confusion
    
    The function just returns the no-child flag value, it doesn't
    check if the iter has no child.

 gthumb/gth-folder-tree.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/gthumb/gth-folder-tree.c b/gthumb/gth-folder-tree.c
index 747c0637..2fa10850 100644
--- a/gthumb/gth-folder-tree.c
+++ b/gthumb/gth-folder-tree.c
@@ -1231,7 +1231,7 @@ _gth_folder_tree_set_file_data (GthFolderTree *folder_tree,
 
 
 static gboolean
-_gth_folder_tree_iter_has_no_child (GthFolderTree *folder_tree,
+_gth_folder_tree_iter_get_no_child (GthFolderTree *folder_tree,
                                    GtkTreeIter   *iter)
 {
        gboolean no_child;
@@ -1597,7 +1597,7 @@ gth_folder_tree_set_children (GthFolderTree *folder_tree,
        else
                return;
 
-       if (_gth_folder_tree_iter_has_no_child (folder_tree, p_parent_iter))
+       if (_gth_folder_tree_iter_get_no_child (folder_tree, p_parent_iter))
                return;
 
        tree_model = GTK_TREE_MODEL (folder_tree->priv->tree_store);
@@ -1705,7 +1705,7 @@ gth_folder_tree_loading_children (GthFolderTree *folder_tree,
        else
                return;
 
-       if (_gth_folder_tree_iter_has_no_child (folder_tree, p_parent_iter))
+       if (_gth_folder_tree_iter_get_no_child (folder_tree, p_parent_iter))
                return;
 
        _gth_folder_tree_add_loading_item (folder_tree, p_parent_iter, FALSE);
@@ -1866,7 +1866,7 @@ gth_folder_tree_delete_children (GthFolderTree *folder_tree,
        else
                return;
 
-       if (_gth_folder_tree_iter_has_no_child (folder_tree, p_parent_iter))
+       if (_gth_folder_tree_iter_get_no_child (folder_tree, p_parent_iter))
                return;
 
        /* add the empty item first to not allow the folder to collapse. */