[fixed] When non-latin language, Wings does output error log.

[tkbd]

In Constraint command,If a tag string has been translated by non-latin string.
Wings does output following error log.

Code:

wpc_constraints:command/3: bad return value: {'EXIT',
                                              {badarg,
                                               [{io,format,
                                                 [<0.90.0>,
                                                  "The ~s constraint bound to ~s is now set to ~p\n\n",
                                                  [[22238,36578,37327],
                                                   "Alt",90.0]],
                                                 []},
                                                {wpc_constraints,
                                                 set_constraint,3,
                                                 [{file,"wpc_constraints.erl"},
                                                  {line,1053}]},
                                                {wpc_constraints,set_angle,3,
                                                 [{file,"wpc_constraints.erl"},
                                                  {line,902}]},
                                                {wings_develop,time_command,
                                                 2,
                                                 [{file,"wings_develop.erl"},
                                                  {line,81}]},
                                                {wings_plugin,command,3,
                                                 [{file,"wings_plugin.erl"},
                                                  {line,139}]},
                                                {wings,raw_command_1,3,
                                                 [{file,"wings.erl"},
                                                  {line,641}]},
                                                {wings,raw_command,4,
                                                 [{file,"wings.erl"},
                                                  {line,638}]},
                                                {wings_wm,handle_event,3,
                                                 [{file,[...]},{line,...}]}]}}

My Enviroment is...
Wings3D v2.0.4
MacOSX v10.11.4
CPU: Mac mini 2.8 GHz Intel Core i5,Mem: 8GB
GPU: Intel Iris 1536 MB
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tkbd