pgbouncer - pgbouncer: win32: more fixes - move socket errors back to

Log Message:
-----------
win32: more fixes

- move socket errors back to errno
- don't call closesocket() on plain files

Modified Files:
--------------
pgbouncer/src:
main.c (r1.54 -> r1.55)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/main.c.diff?r1=1.54&r2=1.55)
util.c (r1.26 -> r1.27)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/util.c.diff?r1=1.26&r2=1.27)
pgbouncer/win32:
compat_win32.h (r1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/win32/compat_win32.h.diff?r1=1.1&r2=1.2)