closes bpo-37803: pdb: fix handling of options (--help / --version) (GH-15193)

The "--" should not be included with long options passed to
getopt.getopt.

Fixes https://bugs.python.org/issue37803

Lib/pdb.py

@@ -1660,7 +1660,7 @@ To let the script run up to a given line X in the debugged file, use
 def main():
     import getopt
 
-    opts, args = getopt.getopt(sys.argv[1:], 'mhc:', ['--help', '--command='])
+    opts, args = getopt.getopt(sys.argv[1:], 'mhc:', ['help', 'command='])
 
     if not args:
         print(_usage)

Misc/NEWS.d/next/Tools-Demos/2019-09-12-16-15-55.bpo-37803.chEizy.rst

+pdb's ``--help`` and ``--version`` long options now work.