Pick up missing bits from the patch merged in.
2017-03-22  Jonah Graham  <jonah@kichwacoders.com>
	PR gdb/19637
	* python/lib/gdb/printer/bound_registers.py: Import sys.
+2017-03-22  Jonah Graham  <jonah@kichwacoders.com>
+
+       PR gdb/19637
+       * python/lib/gdb/printer/bound_registers.py: Import sys.
+
 2017-03-21  Simon Marchi  <simon.marchi@ericsson.com>
 
        * windows-nat.c (do_windows_fetch_inferior_registers): Add
 
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+import sys
+
 import gdb.printing
 
 if sys.version_info[0] > 2: