pgsql: Use DEVTTY as 'con' on Win32 as a replacement for /dev/tty.

Log Message:
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Use DEVTTY as 'con' on Win32 as a replacement for /dev/tty.

Tags:
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REL8_0_STABLE

Modified Files:
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pgsql/src/bin/psql:
command.c (r1.139.4.2 -> r1.139.4.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/command.c.diff?r1=1.139.4.2&r2=1.139.4.3)
pgsql/src/include:
port.h (r1.69.4.2 -> r1.69.4.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/port.h.diff?r1=1.69.4.2&r2=1.69.4.3)
pgsql/src/port:
sprompt.c (r1.10.4.1 -> r1.10.4.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/port/sprompt.c.diff?r1=1.10.4.1&r2=1.10.4.2)