Sridhar Ratnakumar 232f5ef62c remove ! from command line ...

bash does not like it

```
$ JOB=$(docker run base /bin/sh -c "while true; do echo Hello world!; sleep 1; done")
bash: !: event not found
$
```
Upstream-commit: 3bb176d8ae7f43ab0d1ca8e03b59f2f137f07530
Component: engine

2013-03-20 22:53:42 -07:00

..

engine

remove ! from command line

2013-03-20 22:53:42 -07:00