pgsql: Prevent ALTER USER f RESET ALL from removing the settings that - Mailing list pgsql-committers

Log Message:
-----------
Prevent ALTER USER f RESET ALL from removing the settings that were put there
by a superuser -- "ALTER USER f RESET setting" already disallows removing such a
setting.

Apply the same treatment to ALTER DATABASE d RESET ALL when run by a database
owner that's not superuser.

Tags:
----
REL8_0_STABLE

Modified Files:
--------------
    pgsql/src/backend/commands:
        dbcommands.c (r1.148.4.3 -> r1.148.4.4)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/dbcommands.c?r1=1.148.4.3&r2=1.148.4.4)
        user.c (r1.147.4.1 -> r1.147.4.2)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/user.c?r1=1.147.4.1&r2=1.147.4.2)
    pgsql/src/backend/utils/misc:
        guc.c (r1.252.4.9 -> r1.252.4.10)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/guc.c?r1=1.252.4.9&r2=1.252.4.10)
    pgsql/src/include/utils:
        guc.h (r1.58.4.2 -> r1.58.4.3)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/guc.h?r1=1.58.4.2&r2=1.58.4.3)