Thread: pgsql: Make configuration parameters fall back to their default values

Log Message:
-----------
Make configuration parameters fall back to their default values when they
are removed from the configuration file.

Joachim Wieland

Modified Files:
--------------
    pgsql/src/backend/utils/misc:
        guc-file.l (r1.49 -> r1.50)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/guc-file.l.diff?r1=1.49&r2=1.50)
        guc.c (r1.386 -> r1.387)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/guc.c.diff?r1=1.386&r2=1.387)
    pgsql/src/include/utils:
        guc_tables.h (r1.32 -> r1.33)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/guc_tables.h.diff?r1=1.32&r2=1.33)