prefix - prefix: Support new 8.4 consistent function signature, handle

Log Message:
-----------
Support new 8.4 consistent function signature, handle recheck in the C code

Modified Files:
--------------
prefix:
prefix.c (r1.49 -> r1.50)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/prefix.c?r1=1.49&r2=1.50)
prefix.sql.in (r1.26 -> r1.27)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/prefix.sql.in?r1=1.26&r2=1.27)
prefix/debian:
changelog (r1.7 -> r1.8)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/debian/changelog?r1=1.7&r2=1.8)