Subject: [PATCHES] 970417:  some large object patches


Two patches here, made against 970417.  Both have to do with large
objects:

        1.  lobjfuncs was not initialized in PQconnectdb.  This causes
            failure later if large objects are used.  (Someone already
            caught this error in PQsetdb.)

        2.  Postgres functions lo_import and lo_export sometimes
            produce garbage for the file names because the filename
            strings aren't always terminated by \0.  (VARDATA isn't
            necessarily null terminated.)