[COMMITTERS] pgsql: Use sizeof() for snprintf() buffer length.

[Bruce Momjian]

Log Message:
-----------
Use sizeof() for snprintf() buffer length.

Modified Files:
--------------
    pgsql/src/port:
        exec.c (r1.54 -> r1.55)
        
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/port/exec.c.diff?r1=1.54&r2=1.55)

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