Thread: pgsql: Revert recent change of to_char('HH12') handling for intervals;

Log Message:
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Revert recent change of to_char('HH12') handling for intervals;  instead
improve documentation, and add C comment.

Modified Files:
--------------
    pgsql/doc/src/sgml:
        func.sgml (r1.505 -> r1.506)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/func.sgml?r1=1.505&r2=1.506)
    pgsql/src/backend/utils/adt:
        formatting.c (r1.165 -> r1.166)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/formatting.c?r1=1.165&r2=1.166)