#14804: Remove [] around optional arguments with default values
Mostly just mechanical removal of []. In some rare cases I've pulled the
default value up into the argument list.
diff --git a/Doc/library/pickletools.rst b/Doc/library/pickletools.rst
index ce47c97..ebb30ab 100644
--- a/Doc/library/pickletools.rst
+++ b/Doc/library/pickletools.rst
@@ -20,7 +20,7 @@
probably won't find the :mod:`pickletools` module relevant.
-.. function:: dis(pickle[, out=None, memo=None, indentlevel=4])
+.. function:: dis(pickle, out=None, memo=None, indentlevel=4)
Outputs a symbolic disassembly of the pickle to the file-like object *out*,
defaulting to ``sys.stdout``. *pickle* can be a string or a file-like object.