Doug Davis 309bf49758 Fix RUN's error msg when it fails ...

When RUN returns with a non-zero return code it prints the command
that was executed as a Go []string:
```
INFO[0000] The command &{[/bin/sh -c noop a1 a2]} returned a non-zero code: 127
```

instead it should look like this:
```
INFO[0000] The command "/bin/sh -c noop a1 a2" returned a non-zero code: 127
```

Signed-off-by: Doug Davis <dug@us.ibm.com>
Upstream-commit: 54662eae10923a0aca03ffddc1a30b7d25431c79
Component: engine

2015-05-05 16:08:41 -07:00

components/engine

Fix RUN's error msg when it fails

2015-05-05 16:08:41 -07:00

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