tests/test-push-warn

Pass correct username as $HGUSER to hgeditor if "commit -u" is used.
And only use the new util.system parameter to set the environment.

#!/bin/sh

mkdir a
cd a
hg init
echo foo > t1
hg add t1
hg commit -m "1" -d "1000000 0"

cd ..
hg clone a b

cd a
echo foo > t2
hg add t2
hg commit -m "2" -d "1000000 0"

cd ../b
echo foo > t3
hg add t3
hg commit -m "3" -d "1000000 0"

hg push ../a
hg pull ../a
hg push ../a
hg up -m
hg commit -m "4" -d "1000000 0"
hg push ../a