Error in Debian package: Version string '1.1.1_1': invalid character in version number

```
dpkg -i petit-current.deb
dpkg: error processing petit-current.deb (--install):
 parsing file '/var/lib/dpkg/tmp.ci/control' near line 2 package 'petit':
 error in Version string '1.1.1_1': invalid character in version number
Errors were encountered while processing:
 petit-current.deb

Debian 7 x64
```

Original issue reported on code.google.com by `sam...@gmail.com` on 27 Jul 2014 at 11:00
