gh-137070: Clarify Traversable.open text parameters

Author: lpyu001

Doc/library/importlib.resources.abc.rst

@@ -157,8 +157,8 @@
        *mode* may be 'r' or 'rb' to open as text or binary. Return a handle
        suitable for reading (same as :attr:`pathlib.Path.open`).
 
-       When opening as text, accepts encoding parameters such as those
-       accepted by :class:`io.TextIOWrapper`.
+       When opening as text, accepts the *encoding*, *errors*, and *newline*
+       keyword arguments with the same meanings as in :class:`io.TextIOWrapper`.
 
     .. method:: read_bytes()
 

Lib/importlib/resources/abc.py

@@ -154,8 +154,8 @@ def open(self, mode: str = 'r', *args: Any, **kwargs: Any) -> TextIO | BinaryIO:
         mode may be 'r' or 'rb' to open as text or binary. Return a handle
         suitable for reading (same as pathlib.Path.open).
 
-        When opening as text, accepts encoding parameters such as those
-        accepted by io.TextIOWrapper.
+        When opening as text, accepts the encoding, errors, and newline
+        keyword arguments with the same meanings as in io.TextIOWrapper.
         """
 
     @property