Update to 2.17.5.

• Allow https URLs for the WWW line in pkg-descr. Why are we only NOW doing this? [1]
• Check TIMESTAMP to make sure it's in the present/past, but not more than 30 days in the past. [2]

PR: 212091 [2]
Submitted by: amdmi3 [1]
Differential Revision: D8462 [1]