Fixed typo

Author: TTsangSC

line_profiler/line_profiler.py

@@ -195,7 +195,7 @@ def check(*_):
             except TypeError:  # Not a callable (wrapper)
                 continue
             if wrap:
-                wrapper = add_func(value)
+                wrapper = wrap_func(value)
                 if wrapper is not value:
                     try:
                         setattr(namespace, attr, wrapper)