util: avoid using hashlib on Python < 2.5 (issue2278)
The following patch allows the use of python2.4 with a standalone
hashlib rather than assuming that python2.5 is in use when hashlib is
imported successfully.
#!/bin/sh
"$TESTDIR/hghave" gpg || exit 80
cat <<EOF >> $HGRCPATH
[extensions]
gpg=
[gpg]
cmd=gpg --no-permission-warning --no-secmem-warning --homedir $TESTDIR/gpg
EOF
hg init r
cd r
echo foo > foo
hg ci -Amfoo
echo '% no signatures'
hg sigs
echo '% hg sign 0'
hg sign 0
echo '% hg sigs'
hg sigs
echo '% hg sigcheck 0'
hg sigcheck 0