[COMMITTERS] pgsql: Fixed small typo in changelog

[Michael Meskes]

Log Message:
-----------
Fixed small typo in changelog

Modified Files:
--------------
    pgsql/src/interfaces/ecpg:
        ChangeLog (r1.305 -> r1.306)
        
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/ChangeLog.diff?r1=1.305&r2=1.306)

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