4.?bsd vi bug in doing ":args" command (with fix)

[Arthur David Olson]

Index:
	/usr/src/cmd/ex/ex_cmdsub.c (4.1bsd)
	/usr/src/ucb/ex/ex_cmdsub.c (4.2bsd)

Description:
	Bogus characters sometimes replace blanks in the output of an ":args"
	command when there are a large number of arguments.

Repeat by:
	On an eighty-column terminal, use the commands

		vi `repeat 19 echo abcdefg` 12345 67890
		:args

	and note the output:

[abcdefg] abcdefg abcdefg abcdefg abcdefg abcdefg abcdefg abcdefg abcdefg abcde
fg abcdefg abcdefg abcdefg abcdefg abcdefg abcdefg abcdefg abcdefg abcdefg 12345
f67890

	where the 'f' at the beginning of the last line is bogus.

Fix:
	As is nearly always the case, the trade secret status of the code
	involved precludes a clearer posting.

	ed ex_cmdsub.c
	/^pargs/;/putchar/c
	#ifdef OLDVERSION
				putchar(' ');
	#else
				putchar(' ' | QUOTE);
	#endif
	.
	w
	q
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