getopt used to sort the long option names, in an attempt to simplify

the logic.  That resulted in a bug.  My previous getopt checkin repaired
the bug but left the sorting.  The solution is significantly simpler if
we don't bother sorting at all, so this checkin gets rid of the sort and
the code that relied on it.

Author: tim-one

Lib/getopt.py

@@ -65,7 +65,6 @@ def getopt(args, shortopts, longopts = []):
         longopts = [longopts]
     else:
         longopts = list(longopts)
-    longopts.sort()
     while args and args[0].startswith('-') and args[0] != '-':
         if args[0] == '--':
             args = args[1:]
@@ -99,19 +98,10 @@ def do_longs(opts, opt, longopts, args):
 # Return:
 #   has_arg?
 #   full option name
-# Assumes longopts has been sorted (ASCII order).
 def long_has_args(opt, longopts):
-    for i in range(len(longopts)):
-        if longopts[i].startswith(opt):
-            break
-    else:
+    possibilities = [o for o in longopts if o.startswith(opt)]
+    if not possibilities:
         raise GetoptError('option --%s not recognized' % opt, opt)
-    # opt is a prefix of longopts[i]; find j s.t. opt is a prefix of
-    # each possibility in longopts[i:j]
-    j = i+1
-    while j < len(longopts) and longopts[j].startswith(opt):
-        j += 1
-    possibilities = longopts[i:j]
     # Is there an exact match?
     if opt in possibilities:
         return 0, opt