Repair Rip
George, you can repair the rip as you stated and use adhesive backed dacron tape and zig zag stitch. However, from your photo, this would be a temporary measure. The rip looks like the result of fabric fatigue. In other words, the sail has reached the end of its useful life--it is old and worn out. The clew of a sail, particularly a jib, receives a lot of stress. It doesn't look like the sail will take much more. It could be cut into an anchor riding sail, or an awning. If money is an issue, search web for Atlantic Sail Traders, or Mother of All Maritime Links and look under sails and rigging for inexpensive used sails. Otherwise, a new sail for a Hunter 22 would be available from almost any sailmaker starting with the HOW chandlery. A new sail might cost $500 and up. IMHO it is your choice.