Log Message:
-----------
Fix up problems in write_auth_file and parsing of the auth file.
In particular, make hba.c cope with zero-length tokens, which it
never did properly before. Also, enforce rolcanlogin.
Modified Files:
--------------
pgsql/src/backend/commands:
user.c (r1.153 -> r1.154)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/user.c.diff?r1=1.153&r2=1.154)
pgsql/src/backend/libpq:
hba.c (r1.143 -> r1.144)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/libpq/hba.c.diff?r1=1.143&r2=1.144)
pgsql/src/backend/utils/init:
flatfiles.c (r1.9 -> r1.10)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/init/flatfiles.c.diff?r1=1.9&r2=1.10)
miscinit.c (r1.143 -> r1.144)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/init/miscinit.c.diff?r1=1.143&r2=1.144)
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