[cvs-nhc98] patch applied (hat): In hat-explore, write all errors to stderr.

Fri Feb 15 07:39:33 PST 2002 malcolm * In hat-explore, write all errors to stderr. Fix a bug where the function in an application is a null file pointer Fix a pattern-match failure when traversing a comma-separated list. Fix an incorrect lack of parentheses when an application goes through a projection. M ./src/hattools/SExp.hs -14 +19