* doc/contrib.texi (Contributors): Add John David Anglin and Loren

	J. Rittle (the latter also to Testers).  Update David O'Brien's entry.
	* doc/contrib.texi (Contributors): Add David O'Brien.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@52024 138bc75d-0d04-0410-961f-82ee72b054a4