[COMMITTERS] pgsql: Fix typo in comment, per Alvaro.

[Tom Lane]

Log Message:
-----------
Fix typo in comment, per Alvaro.

Modified Files:
--------------
    pgsql/src/backend/postmaster:
        postmaster.c (r1.451 -> r1.452)
        
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/postmaster/postmaster.c.diff?r1=1.451&r2=1.452)

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