Allow ambiguous command shortcut if only an alias for the same command.
Currently the only example for this is 'hg o' or 'hg ou' as a shortcut for
'hg out' and 'hg outgoing'.
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 1 changesets, 1 total revisions
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
verify failed
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 1 changesets, 1 total revisions
commit failed