* data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):

* data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
Fix typos in previous change that broke 'make check'.
YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
supported in C.
* tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
Don't check NUM-STDERR-LINES, since the output format is fluctuating.
We can revert this once things settle down.