extensions: show deprecation warning for the use of cmdutil.command
Since this is a fundamental API for extensions, we set 1-year period until
actually removing it.
fixbundle() {
grep -v 'saving bundle' | grep -v 'saved backup' | \
grep -v added | grep -v adding | \
grep -v "unable to find 'e' for patching" | \
grep -v "e: No such file or directory" | \
cat
}