Don't reuse the exception if it has already been set.

Don't reuse the exception if it has already been set.

2001-09-13  Jeffrey Stedfast  <fejj@ximian.com>

	* camel-filter-driver.c (camel_filter_driver_filter_folder): Don't
	reuse the exception if it has already been set.
	(camel_filter_driver_filter_message): Same here. Also use the new
	return value from camel_filter_search_match().

	* camel-filter-search.c (camel_filter_search_match): Return an
	integer (matched, no-match, or error).