[PATCH] Exit after displaying options with --showoptions

[dinkypumpkin]

As reported by Andy Bircumshaw here:

http://lists.infradead.org/pipermail/get_iplayer/2011-May/001564.html

there was a missing call to exit() when processing --showoptions, so get_iplayer
would go on to perform an unnecessary search after displaying option values. This
trivial patch fixes that.

This change has been incorporated into my get_iplayer fork.  Instructions here:

https://github.com/dinkypumpkin/get_iplayer/wiki/instructions

Commit message follows, patch is attached.

With --showoptions on the command line, get_iplayer would proceed
to perform a search instead of exiting.  Missing call to exit()
function was added to --showoptions processing.
---
 get_iplayer |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

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