py3: have bytes version of os.getenv
os.getenv() on python 3 deals with unicodes. If we want to pass bytes. we have
os.getenvb() which deals with bytes. This patch adds up a pycompat.osgetenv
which deals with bytes on both python 2 and 3.
#require serve killdaemons
$ hg clone http://localhost:$HGPORT/ copy
abort: * (glob)
[255]
$ test -d copy
[1]
$ python "$TESTDIR/dumbhttp.py" -p $HGPORT --pid dumb.pid
$ cat dumb.pid >> $DAEMON_PIDS
$ hg clone http://localhost:$HGPORT/foo copy2
abort: HTTP Error 404: * (glob)
[255]
$ killdaemons.py