Doug Davis 978bdd6270 Fix docker import tests
For me when I run the test I see:
```
Downloading from http://nourl/bad
Importing    283 B
Untar re-exec error: exit status 1: output: unexpected EOF
```
and nothing about "dial tcp" so it appears that the output is
system dependent and therefore we can't really check it. I think
checking for non-zero exit code is sufficient so I'm removing this
string check.

Signed-off-by: Doug Davis <dug@us.ibm.com>
Upstream-commit: ac043c7db67f268e96c7c7d0236d5316f3a2d9ac
Component: engine
2016-05-23 15:34:40 -07:00
2016-05-23 15:34:40 -07:00
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