Treat colons and commas as end of input in expression parser

Just like a comment.  This is to allow processing of lists
of numbers separated by colons or commas.  Also, fix the comment
processing to require zero rather than one character after '#'

Signed-off-by: Stephen M. Cameron <stephenmcameron@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
1 file changed