osdep: Remove trailing whitespaces

Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

grub-core/osdep/haiku/getroot.c

@@ -66,7 +66,7 @@ grub_util_find_partition_start_os (const char *dev)
   if (ioctl (fd, B_GET_GEOMETRY, &geo, sizeof (geo)) < 0)
     return 0;
   ret /= geo.bytes_per_sector ? : 512;
-  close (fd);  
+  close (fd);
   return ret;
 }