Add punctuation: We recommend that you upgrade your libgtk2perl packages
A: We recommend that you upgrade your libgtk2-perl packages.

Add punctuation: Many people have contributed with knowledge insight and good ideas to our design philosophy and product line
A: Many people have contributed with knowledge, insight and good ideas to our design philosophy and product line.

Add punctuation: Establish flexible and secure distribution of access rights for specified areas within a building as well as for other sites and facilities using the same credential as used at the main location
A:
Establish flexible and secure distribution of access rights for specified areas within a building, as well as for other sites and facilities using the same credential as used at the main location.