pgsql: Adjust plpython to convert \r\n and \r to \n in Python scripts,

[tgl(at)svr1(dot)postgresql(dot)org (Tom Lane)]

Log Message:
-----------
Adjust plpython to convert \r\n and \r to \n in Python scripts,
per recent discussion concluding that this is the Right Thing.  Add
regression test check for this behavior.  Michael Fuhr

Tags:
----
REL8_0_STABLE

Modified Files:
--------------
    pgsql/src/pl/plpython:
        feature.expected (r1.9 -> r1.9.8.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpython/feature.expected.diff?r1=1.9&r2=1.9.8.1)
        plpython.c (r1.58 -> r1.58.4.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpython/plpython.c.diff?r1=1.58&r2=1.58.4.1)
        plpython_function.sql (r1.6 -> r1.6.8.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpython/plpython_function.sql.diff?r1=1.6&r2=1.6.8.1)
        plpython_test.sql (r1.2 -> r1.2.12.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpython/plpython_test.sql.diff?r1=1.2&r2=1.2.12.1)