[librsvg/rustification] Rename rsvg_node_group_pack() to rsvg_node_add_child()

[Federico Mena Quintero <federico src gnome org>]

commit 4f1d58dbffc6d35bf1af6f23f4d68ea93b3d3ffc
Author: Federico Mena Quintero <federico gnome org>
Date:   Tue Nov 22 16:05:34 2016 -0600

    Rename rsvg_node_group_pack() to rsvg_node_add_child()
    
    ... since that is its true purpose.

 rsvg-base.c      |    4 ++--
 rsvg-structure.c |    2 +-
 rsvg-structure.h |    2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/rsvg-base.c b/rsvg-base.c
index 6f9275c..186550f 100644
--- a/rsvg-base.c
+++ b/rsvg-base.c
@@ -422,7 +422,7 @@ rsvg_standard_element_start (RsvgHandle * ctx, const char *name, RsvgPropertyBag
         register_node_in_defs (ctx, newnode, atts);
 
         if (ctx->priv->currentnode) {
-            rsvg_node_group_pack (ctx->priv->currentnode, newnode);
+            rsvg_node_add_child (ctx->priv->currentnode, newnode);
         } else if (RSVG_NODE_TYPE (newnode) == RSVG_NODE_TYPE_SVG) {
             ctx->priv->treebase = newnode;
         }
@@ -958,7 +958,7 @@ rsvg_characters_impl (RsvgHandle * ctx, const xmlChar * ch, int len)
     add_node_to_handle (ctx, (RsvgNode *) self);
 
     if (ctx->priv->currentnode)
-        rsvg_node_group_pack (ctx->priv->currentnode, (RsvgNode *) self);
+        rsvg_node_add_child (ctx->priv->currentnode, (RsvgNode *) self);
 }
 
 static void
diff --git a/rsvg-structure.c b/rsvg-structure.c
index 5feb18b..a3f5b80 100644
--- a/rsvg-structure.c
+++ b/rsvg-structure.c
@@ -140,7 +140,7 @@ rsvg_new_group (const char *element_name)
 }
 
 void
-rsvg_node_group_pack (RsvgNode * self, RsvgNode * child)
+rsvg_node_add_child (RsvgNode * self, RsvgNode * child)
 {
     g_ptr_array_add (self->children, child);
     child->parent = self;
diff --git a/rsvg-structure.h b/rsvg-structure.h
index e7a53db..6059305 100644
--- a/rsvg-structure.h
+++ b/rsvg-structure.h
@@ -79,7 +79,7 @@ struct _RsvgNodeSvg {
 };
 
 G_GNUC_INTERNAL
-void rsvg_node_group_pack   (RsvgNode * self, RsvgNode * child);
+void rsvg_node_add_child   (RsvgNode * self, RsvgNode * child);
 G_GNUC_INTERNAL
 void rsvg_node_draw         (RsvgNode * self, RsvgDrawingCtx * ctx, int dominate);
 G_GNUC_INTERNAL