#682: Unify work with output in classic and instant mode

thefuck/rules/yarn_command_not_found.py

@@ -7,7 +7,7 @@ regex = re.compile(r'error Command "(.*)" not found.')
 
 @for_app('yarn')
 def match(command):
-    return regex.findall(command.stderr)
+    return regex.findall(command.output)
 
 
 npm_commands = {'require': 'add'}
@@ -29,7 +29,7 @@ def _get_all_tasks():
 
 
 def get_new_command(command):
-    misspelled_task = regex.findall(command.stderr)[0]
+    misspelled_task = regex.findall(command.output)[0]
     if misspelled_task in npm_commands:
         yarn_command = npm_commands[misspelled_task]
         return replace_argument(command.script, misspelled_task, yarn_command)