Pass in the max number of bytes to read. (pnm_read_ascii_scanline): And

Pass in the max number of bytes to read. (pnm_read_ascii_scanline): And

2005-02-07  Matthias Clasen  <mclasen@redhat.com>

	* io-pnm.c (pnm_read_next_value): Pass in the max number
	of bytes to read.
	(pnm_read_ascii_scanline): And use it here to enable
	parsing of pbm images without whitespace between the
	pixels.  (#165803, Samuel Hym)