AT_PARSER_CHECK([[./input aaaap]])
AT_PARSER_CHECK([[./input --debug aaaap]], [[2]], [[]], [[stderr]])
-AT_PARSER_CHECK([[grep '^exception caught: printer$' stderr]], [], [ignore])
+AT_CHECK([[grep '^exception caught: printer$' stderr]], [], [ignore])
AT_PARSER_CHECK([[./input aaaae]], [[2]], [[]],
[[exception caught: syntax error