USR function (*solved*)

[britlion]

We seem to have a regression with the latest version:

print USR "A" falls over:

Traceback (most recent call last):
File "zxb.py", line 312, in <module>
File "zxb.py", line 246, in main
File "zxbtrad.pyc", line 316, in traverse
File "zxbtrad.pyc", line 1286, in traverse
File "zxbtrad.pyc", line 593, in traverse
UnboundLocalError: local variable 'suffix' referenced before assignment
Build Failed!