Less version 704

Version 704 was released for beta testing on 31 May 2026, and for general use on 6 June 2026.

These are the differences between version 702 and version 704:

• Fix possibly passing unsafe options to man when opening an OSC 8 link (github #779).
• Fix possibly sending unsafe OSC sequence to terminal when file contains an unterminated OSC sequence (github #781).
• In Examine and Shell commands, expand % and # to shell-escaped filenames (github #784).