Issue #22812: Fix unittest discovery examples.

Patch from Pam McA'Nulty.
diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index 5085703..1153f83 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -278,8 +278,8 @@
 as positional arguments in that order. The following two command lines
 are equivalent::
 
-   python -m unittest discover -s project_directory -p '*_test.py'
-   python -m unittest discover project_directory '*_test.py'
+   python -m unittest discover -s project_directory -p "*_test.py"
+   python -m unittest discover project_directory "*_test.py"
 
 As well as being a path it is possible to pass a package name, for example
 ``myproject.subpackage.test``, as the start directory. The package name you
diff --git a/Misc/ACKS b/Misc/ACKS
index 6ab35e4..7d89eb7 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -920,6 +920,7 @@
 Madison May
 Lucas Maystre
 Arnaud Mazin
+Pam McA'Nulty
 Matt McClure
 Jack McCracken
 Rebecca McCreary
diff --git a/Misc/NEWS b/Misc/NEWS
index 5207e83..625e7e6 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -129,6 +129,9 @@
 Documentation
 -------------
 
+- Issue #22812: Fix unittest discovery examples.
+  Patch from Pam McA'Nulty.
+
 - Issue #23725: Overhaul tempfile docs. Note deprecated status of mktemp.
   Patch from Zbigniew Jędrzejewski-Szmek.