Log Message:
-----------
Provide a more accurate, detailed log message when the archive command fails.
Modified Files:
--------------
pgsql/src/backend/postmaster:
pgarch.c (r1.33 -> r1.34)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/postmaster/pgarch.c?r1=1.33&r2=1.34)