bpo-37014: Update docstring and Documentation of fileinput.FileInput(). (GH-13545)
* bpo-37014: Update docstring and Documentation of fileinput.FileInput()
* Explain the behavior of fileinput.FileInput() when reading stdin.
* Update blurb.
* bpo-37014: Fix typo in the docstring and documentation.
diff --git a/Lib/fileinput.py b/Lib/fileinput.py
index d868e74..c1b0ec9 100644
--- a/Lib/fileinput.py
+++ b/Lib/fileinput.py
@@ -8,9 +8,9 @@
This iterates over the lines of all files listed in sys.argv[1:],
defaulting to sys.stdin if the list is empty. If a filename is '-' it
-is also replaced by sys.stdin. To specify an alternative list of
-filenames, pass it as the argument to input(). A single file name is
-also allowed.
+is also replaced by sys.stdin and the optional arguments mode and
+openhook are ignored. To specify an alternative list of filenames,
+pass it as the argument to input(). A single file name is also allowed.
Functions filename(), lineno() return the filename and cumulative line
number of the line that has just been read; filelineno() returns its