In some cases the "base" software package string does not have the
currently expected format of \d{2}.\d{2}.\d{3}. Specifically the last
triplet of characters might not be digits. For example a valid version
string might be 25.20.-04, which the current regex is unable to parse.
This change replace the previous regex with one less restrictive,
checking only the first part of the version's format.
Carlo Lobrano
0645b70aea