Thread: pgsql: Add units to the default postgresql.conf.

Log Message:
-----------
Add units to the default postgresql.conf.  For the most part, this should
match what SHOW displays as default value, to make the user experience
uniform.

Modified Files:
--------------
    pgsql/src/backend/utils/misc:
        guc.c (r1.350 -> r1.351)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/guc.c.diff?r1=1.350&r2=1.351)
        postgresql.conf.sample (r1.192 -> r1.193)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/postgresql.conf.sample.diff?r1=1.192&r2=1.193)