Do not initially fill buffer to prettify message
Do not initially fill buffer to prettify message

Doing so let to a duplicate message since the prettified message
would be appended to the initial buffer contents.

GNOME/libgit2-glib,chergert/libgit2-glib,chergert/libgit2-glib,GNOME/libgit2-glib,chergert/libgit2-glib