Log Message:
-----------
Add catch and end convenience macro.
This will get use in various places where all that is left to do after the
PyErr_SetPostgresError() is a return(NULL) or a goto some_cleanup.
Modified Files:
--------------
be/include/pypg:
error.h (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/be/include/pypg/error.h.diff?r1=1.2&r2=1.3)