gh-91984: Fix trailing spaces in multiline test strings in test_argparse (GH-91986)

Lib/test/test_argparse.py

@@ -2265,8 +2265,7 @@ class TestAddSubparsers(TestCase):
             main description
 
             positional arguments:
-              foo         
-
+              foo         \n
             options:
               -h, --help  show this help message and exit
         '''))
@@ -2282,8 +2281,7 @@ class TestAddSubparsers(TestCase):
             main description
 
             positional arguments:
-              {}          
-
+              {}          \n
             options:
               -h, --help  show this help message and exit
         '''))

Misc/NEWS.d/next/Library/2022-04-27-18-30-00.gh-issue-91984.LxAB11.rst

@@ -0,0 +1 @@
+Modified test strings in test_argparse.py to not contain trailing spaces before end of line.