2011-09-02  Robert Dewar  <dewar@adacore.com>

	* lib-xref.adb: Minor reformatting

2011-09-02  Vincent Celier  <celier@adacore.com>

	* bindusg.adb, clean.adb, gnatchop.adb, gnatfind.adb, gnatlink.adb,
	gnatls.adb, gnatname.adb, gnatxref.adb, gprep.adb, makeusg.adb: Add
	--version and --help in usage.
	* switch.ads, switch.adb (Display_Usage_Version_And_Help): New procedure

From-SVN: r178454