dns/py-dnspython: Fix installation
- When git is installed and ports tree is used files are not properly installed. [1]
- TRIO_DESC is very short and do not explain the real reason of the OPTION hence update the DESC in details. [2]
- There was a typo in the IDNA_DESC which is fixed. [3]
PR: 272932 [1], 274416 [2], 272624 [3]
Reported by: fbsd-bug@tschneider.org [1],
dewayne@heuristicsystems.com.au [2]