Fixed the --make-shared, --make-rshared, ... etc. (--make-*) options
in the mount command. Now parse_mount_options() may reasonably process such
options.
Fixed: http://lists.busybox.net/pipermail/busybox/2011-January/074511.html
Signed-off-by: Roman Borisov <ext-roman.borisov@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>