commit 63ccaec2c39f4b5742383472c951ee2cd35c9e14
 Author: Adam Jackson <ajax@redhat.com>
 Date:   Tue Oct 19 11:59:23 2010 -0400

    render2.c: In function ‘__glXDisp_Map2d’:
    render2.c:127: warning: ‘u1’ may be used uninitialized in this function
    render2.c: In function ‘__glXDisp_Map1d’:
    render2.c:90: warning: ‘u1’ may be used uninitialized in this function

    Remove unnecessary test, and change memcpy to memmove as all users were
    doing overlapping copies.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>