gdb/

gdb/
	Rename $ddir to $datadir.
	* NEWS (--with-auto-load-dir): Rename $ddir to $datadir.
	* auto-load.c (auto_load_safe_path_vec_update)
	(auto_load_gdb_datadir_changed, auto_load_objfile_script): Likewise.
	* configure: Regenerate.
	* configure.ac (--with-auto-load-dir, --with-auto-load-safe-path):
	Likewise.  Remove the 'use $ddir' help string.

gdb/doc/
	Rename $ddir to $datadir.
	* gdb.texinfo (Auto-loading, Auto-loading safe path)
	(objfile-gdb.py file): Rename $ddir to $datadir.