minor: doc: getfuncargnames: move TODO out of docstring

Author: blueyed

src/_pytest/compat.py

@@ -143,12 +143,12 @@ def getfuncargnames(
     the case of cls, the function is a static method.
 
     The name parameter should be the original name in which the function was collected.
-
-    @RonnyPfannschmidt: This function should be refactored when we
-    revisit fixtures. The fixture mechanism should ask the node for
-    the fixture names, and not try to obtain directly from the
-    function object well after collection has occurred.
     """
+    # TODO(RonnyPfannschmidt): This function should be refactored when we
+    # revisit fixtures. The fixture mechanism should ask the node for
+    # the fixture names, and not try to obtain directly from the
+    # function object well after collection has occurred.
+
     # The parameters attribute of a Signature object contains an
     # ordered mapping of parameter names to Parameter instances.  This
     # creates a tuple of the names of the parameters that don't have