switch to .txr-profile and .txr-history

The profile and history files should have used hyphens
from the beginning. Let's switch to that but continue
to work with the old files if present, as an obsolescent
feature.

* parser.c (open_txr_file): Treat files with .txr-profile
suffix as Lisp.
(load_rcfile): Arguments rearranged. This function now needs
the home directory and the existence test function, but
does not need the profile file name. It tries .txr-profile
first, then .txr-profile.
(repl): Call load_rcfile in the new way. Try two history
files: first .txr-history and then .txr_history. Remember
which one was used so the same one is saved. If neither file
existed at startup, then save new history into .txr-history.

* txr.1: Documented.

0 files changed, 0 insertions, 0 deletions