bundle: do no check the changegroup version if no changegroup is included
We don't need to check the compatibility of something we will not use.
In practice this was getting in the was of `streamv2` bundles on a narrow
repository as the 'cg.version=02' value was rejected by this checks.
#!/usr/bin/env python3
#
# A tool to help producing large and poorly compressible files
#
# Usage:
# $TESTDIR/seq.py 1000 | $TESTDIR/sha256line.py > my-file.txt
import hashlib
import sys
for line in sys.stdin:
print(hashlib.sha256(line.encode('utf8')).hexdigest())