[Zope] set TEMPDIR in 2.7-b4

[Veiko Schnabel]

i try ti import more data than available disk space at /tmp and get an 
IO-Error
"Not enough disk space"
when using 2.7-b2 i changed the environment variable TMPDIR in 
/instance_home/bin/zopectl, like
export TMPDIR=/place/with/more/space
but this is not working anymore when using 
2.7-b4
did i made a mistake or did they changed the variable-name or whats going 
wrong

thanx for help

veiko