[client] text_tools: fix undefined reference in print_menu

client/text_tools.py

@@ -229,6 +229,7 @@ def print_table(lines_data, cell_spacing = 2, cell_padding = 0,
     """
     column_sizes = {}
     padding_side = int((cell_padding / 2))
+    col_n = 0
     for cols in lines_data:
         if not isinstance(cols, (list, tuple)):
             # can be a plain string