5.2.0 printf bugs

[Doug Gwyn <gwyn>]

Some time ago, I posted bug fixes for UNIX System V Release 2.0
*printf.c sources, involving changing a bogus | bit-test into an &.
I just discovered that these fixes were incomplete; there were TWO
such coding errors per source file, and I had missed the second.

For example, from fprintf.c:

/*	@(#)fprintf.c	1.5	*/
...
	if (!(iop->_flag & _IOWRT)) {	/* DAG -- bug fix (was |) */
...
		if (iop->_flag & _IORW) {	/* DAG -- bug fix (was |) */
...

These are in addition to the bug fixes posted by Phil Chadwick,
which I believe are correct (but I'm still looking at them).

All BRL UNIX System V emulation for 4.2BSD packages mailed before
today (not to mention real UNIX System V systems) have these bugs..