Spelling errors in lib/libv4l2/libv4l2.c

[Jason H]

A very minor point, but I've found some then/than confusion:

746: V4L2_LOG_ERR("attempting to open more then %d video devices\n",      // 
should be than
1038: V4L2_LOG_ERR("set_fmt gave us a different result then try_fmt!\n"); // 
should be than
1318:  /* No more buffers then we can manage please */                    // 
should be than

The rest of the 'then's in that file seem ok.