- Change paths to be relative

- Change paths to be relative
#
# Derick, don't forget to move the .re file into this same directory!
#
# This was the 2nd last piece of making the code-coverage thing to work
# properly with VPATH builds. Once Derick moves the parse_date.re
# in the same directory where the generated file lives, it's done.
#
# Just copying it by hand in your sources in the meantime and doing
# "./configure --enable-gcov && make lcov" will produce data in lcov_html/
#