Don't waste time fuzzing programs with large substrings.

While I'm here, dial the fanout limits back up.

Change-Id: I3450280bab86a4ed4273f54e0e01f50f44b93841
Reviewed-on: https://code-review.googlesource.com/c/34790
Reviewed-by: Paul Wankadia <[email protected]>
1 file changed