Thread: pgsql: Add detection of psql pager to trigger on wide output.

Log Message:
-----------
Add detection of psql pager to trigger on wide output.  Also add pager
detection for wrapped lines or lines with newlines that need pager to
display.

Modified Files:
--------------
    pgsql/doc/src/sgml/ref:
        psql-ref.sgml (r1.204 -> r1.205)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/psql-ref.sgml?r1=1.204&r2=1.205)
    pgsql/src/bin/psql:
        print.c (r1.101 -> r1.102)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/print.c?r1=1.101&r2=1.102)