Log Message:
-----------
Convert earthdistance's only C function to v1 call convention,
to future-proof it against pass-by-value float8.
Modified Files:
--------------
pgsql/contrib/earthdistance:
earthdistance.c (r1.13 -> r1.14)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/earthdistance/earthdistance.c?r1=1.13&r2=1.14)