svr4pkg doesn't work on Sol10

--- This has already been written in issue ansible/ansible#3547


While removing a package from Solaris 10, I always receive the following error:

```
rc, out, err = module.run_command(' '.join(cmd), shell=False)
TypeError: run_command() got an unexpected keyword argument 'shell'
```

I fixed it with modifying the svr4pkg module (old code is commented out)
```
    #rc, out, err = module.run_command(' '.join(cmd), shell=False)
    rc, out, err = module.run_command(' '.join(cmd))
```