[PATCH] libdl: fix unused variable warning

[Bernhard Reutner-Fischer]

On Wed, Aug 28, 2013 at 11:15:21AM +0300, Baruch Siach wrote:
>The following warning introduced with commit 231e4a9b4 (libdl: fix dlopen
>implementation from statically linked application):
>
>ldso/libdl/libdl.c: In function 'do_dlopen':
>ldso/libdl/libdl.c:311:23: warning: unused variable 'ls' [-Wunused-variable]

Applied, thanks!