Setup Merchant Bug

[Bee Carter]

If N is entered when prompted to setup a default category:

Would you like to enter a default category for this merchant? [y/N] n
Traceback (most recent call last):
  File "/home/brian/.bin/ql", line 364, in <module>
    main()
  File "/home/brian/.bin/ql", line 118, in main
    merchants()
  File "/home/brian/.bin/ql", line 265, in merchants
    if merchcat:
UnboundLocalError: local variable 'merchcat' referenced before assignment