Issue #13107: argparse and optparse no longer raises an exception when output

a help on environment with too small COLUMNS.  Based on patch by
Elazar Gershuni.

Lib/test/test_optparse.py

@@ -1443,6 +1443,39 @@ Options:
   -h, --help         show this help message and exit
 """
 
+_expected_very_help_short_lines = """\
+Usage: bar.py [options]
+
+Options:
+  -a APPLE
+    throw
+    APPLEs at
+    basket
+  -b NUM, --boo=NUM
+    shout
+    "boo!" NUM
+    times (in
+    order to
+    frighten
+    away all
+    the evil
+    spirits
+    that cause
+    trouble and
+    mayhem)
+  --foo=FOO
+    store FOO
+    in the foo
+    list for
+    later
+    fooing
+  -h, --help
+    show this
+    help
+    message and
+    exit
+"""
+
 class TestHelp(BaseTest):
     def setUp(self):
         self.parser = self.make_parser(80)
@@ -1500,6 +1533,8 @@ class TestHelp(BaseTest):
         # we look at $COLUMNS.
         self.parser = self.make_parser(60)
         self.assertHelpEquals(_expected_help_short_lines)
+        self.parser = self.make_parser(0)
+        self.assertHelpEquals(_expected_very_help_short_lines)
 
     def test_help_unicode(self):
         self.parser = InterceptingOptionParser(usage=SUPPRESS_USAGE)