Thread: pgsql: Define errcode as __msvc_errcode not __vc_errcode for MSVC

Log Message:
-----------
Define errcode as __msvc_errcode not __vc_errcode for MSVC builds,
per Magnus.

Modified Files:
--------------
    pgsql/src/include/port:
        win32.h (r1.58 -> r1.59)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/port/win32.h.diff?r1=1.58&r2=1.59)
    pgsql/src/pl/plpython:
        plpython.c (r1.87 -> r1.88)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpython/plpython.c.diff?r1=1.87&r2=1.88)