Issue #17203: add long option names to unittest discovery docs.

diff --cc Misc/NEWS
index 541b1f7d6b458230b937521a2c415d4aec82fe8e,d713650c39f3170b7ba81ebc855a92860d393746..c91c3dd4a1ed3fd5d16b243df5323c22fae0c3ee
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -1064,9 -810,6 +1066,9 @@@ Documentatio
  Tools/Demos
  -----------
  
- - Issue #17028: Allowed Python arguments to be supplied to the Windows 
++- Issue #17028: Allowed Python arguments to be supplied to the Windows
 +  launcher.
 +
  - Issue #15539: Fix a number of bugs in Tools/scripts/pindent.py.  Now
    pindent.py works with a "with" statement.  pindent.py no longer produces
    improper indentation.  pindent.py now works with continued lines broken after