Reword some documentation strings

Co-authored-by: hroff-1902 <47309513+hroff-1902@users.noreply.github.com>

freqtrade/commands/cli_options.py

@@ -111,7 +111,7 @@ AVAILABLE_CLI_OPTIONS = {
     ),
     "cancel_open_orders_on_exit": Arg(
         '--cancel-open-orders-on-exit',
-        help='Close unfilled open orders when the bot stops / exits',
+        help='Close unfilled and partially filled open orders when the bot stops / exits.',
         action='store_true',
     ),
     # Optimize common

freqtrade/freqtradebot.py

@@ -170,7 +170,7 @@ class FreqtradeBot:
 
     def process_stopped(self) -> None:
         """
-        Close all trades that were left open
+        Close all orders that were left open
         """
         if self.config['cancel_open_orders_on_exit']:
             self.cancel_all_open_orders()