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Since 607468a9 (beautify 'ipfs ls' and 'ipfs object links', #833)
we've had these.  That pull request was about text/tabwriter [1] and
elastic tabstops [2], but we don't need a column separator at the end
of each line.

[1]: https://golang.org/pkg/text/tabwriter/
[2]: http://nickgravgaard.com/elastic-tabstops/index.html

Licence: MIT
Signed-off-by: W. Trevor King <wking@tremily.us>

To do that the current tests are move inside a
test_object_cmd() function. This function is then first
called before running the daemon for offline tests
and then after starting the daemon for online tests.

License: MIT
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>

Fix indentation and use > instead of >> to create
an expected file.

License: MIT
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>