The dialog 'Continue search from the beginning?' is shown also when unnecessary.

Original Reporter info from Mantis: kluug.net @onpok

• Reporter name: Ondrej Pokorny

Description:

When the caret is already in the beginning (top/left), you start searching and the keyword is not found, you are also asked 'Continue search from the beginning?' - which is dumb because you are already at the beginning.

Steps to reproduce:

1. Move caret to left/top of the editor.
   
2. Search something that is not in the file.
   
3. You'll see a 'Continue search from the beginning?' dialog.

(The same is when you use "search from end".)

Additional information:

The attached patch solves this issue.

Mantis conversion info:

• Mantis ID: 28177
• Build: trunk
• Version: 1.5 (SVN)
• Fixed in revision: r49171 (#9d7274a0)