[gnome-builder] editor: use multi-line comment.

[Christian Hergert <chergert src gnome org>]

commit 1064be612e69d8b1658115ec201a2e0eb22e878d
Author: Christian Hergert <christian hergert me>
Date:   Sat Oct 4 10:07:19 2014 -0700

    editor: use multi-line comment.

 src/editor/gb-editor-vim.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/src/editor/gb-editor-vim.c b/src/editor/gb-editor-vim.c
index d8746f2..9ebc25c 100644
--- a/src/editor/gb-editor-vim.c
+++ b/src/editor/gb-editor-vim.c
@@ -1822,8 +1822,10 @@ gb_editor_vim_page_down (GbEditorVim *vim)
   gtk_text_view_get_iter_at_location (vim->priv->text_view, &iter,
                                       rect.x, rect.y + rect.height);
 
-  // rect.y + rect.height is the next line affter the end of the buffer so
-  // now we have to decrease one more.
+  /*
+   * rect.y + rect.height is the next line affter the end of the buffer so
+   * now we have to decrease one more.
+   */
   line = MAX (0, gtk_text_iter_get_line (&iter) - SCROLL_OFF - 1);
   gtk_text_iter_set_line (&iter, line);