wget: increase redirections limit

wget: increase redirections limit

Some hosting services like sourceforge perform a lot of relocations
before actually serving the file. Example of current limitation:

    busybox wget http://sourceforge.net/projects/fluxbox/files/fluxbox/1.3.7/fluxbox-1.3.7.tar.xz
    Connecting to sourceforge.net (216.105.38.13:80)
    Connecting to sourceforge.net (216.105.38.13:443)
    Connecting to sourceforge.net (216.105.38.13:443)
    Connecting to sourceforge.net (216.105.38.13:443)
    Connecting to downloads.sourceforge.net (216.105.38.13:443)
    wget: too many redirections

Signed-off-by: David Demelier <markand@malikania.fr>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>