Log Message:
-----------
make plproxy_error survive NULL, also avoid NULL func if possible
Modified Files:
--------------
plproxy/src:
execute.c (r1.9 -> r1.10)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plproxy/plproxy/src/execute.c.diff?r1=1.9&r2=1.10)
main.c (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plproxy/plproxy/src/main.c.diff?r1=1.2&r2=1.3)