Hi,
Attached is a small patch that fixes one of my favorite :-) annoyances: when you select "Go to line" from the search menu (or hit ctrl+l), the line number in the dialog window is now selected. So you can type in the line number you want without having to delete your current line number first.
While I was at it, I also limited the maximum line number for that dialog's spinner to the number of lines in the file, instead of the rather arbitrary 10 million.