Version number printed during running does not contain the version hash

```
./bin/reframe -V
```
```
3.0-dev1 (rev: 5163a4a7)
```

```./bin/reframe -l
Command line: ./bin/reframe -l
Reframe version: 3.0-dev1
Launched by user: karakasv
Launched on host: dom101
<omitted>
```