textutils-2.0: unexpand generates infinite output for 6 char input

[John Kodis]

Certain patterns of whitespace will cause unexpand to generate a
continuous stream of spaces as output.  The following one-liner
demonstrates the problem.

$> echo -e '  \t\t ' | unexpand -t 2,17 | od -tx1
0000000 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20
*
^C

$> gcc --version
2.95.2
$> unexpand --version
unexpand (GNU textutils) 2.0
Written by David MacKenzie.

-- 
John Kodis <[EMAIL PROTECTED]>