[COMMITTERS] pgsql: fix typo in regression Makefile.

[Andrew Dunstan]

Log Message:
-----------
fix typo in regression Makefile.

Modified Files:
--------------
    pgsql/src/test/regress:
        GNUmakefile (r1.69 -> r1.70)
        
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/GNUmakefile?r1=1.69&r2=1.70)

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