don't print anything about file of unsupported type unless
the file was specified on the command line
changeset: 0:acb14030fe0a
tag: tip
user: test
date: Thu Jan 1 00:00:00 1970 +0000
summary: test
b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 644 a
a
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1 files, 1 changesets, 1 total revisions