Update Getopt-Long to CPAN version 2.50

  [DELTA]

Changes in version 2.50
-----------------------

* Fix bug https://rt.cpan.org/Ticket/Display.html?id=120231.

* Fix bug https://rt.cpan.org/Ticket/Display.html?id=120300.
  Unfortunately, this withdraws a small part of fix 114999.
  GNU getopt_long() does not accept the (optional)
  argument to be passed to the option without = sign.
  We do, since not doing so breaks existing scripts.

* Provide a default value for options (gnu_compat mode).
  Thanks to Andrew Gregory.

2 files changed, 33 insertions, 15 deletions

diff --git a/Porting/Maintainers.pl b/Porting/Maintainers.pl
index f5598a3366..d9445c7553 100755
--- a/Porting/Maintainers.pl
+++ b/Porting/Maintainers.pl
@@ -559,7 +559,7 @@ use File::Glob qw(:case);
     },
 
     'Getopt::Long' => {
-        'DISTRIBUTION' => 'JV/Getopt-Long-2.49.1.tar.gz',
+        'DISTRIBUTION' => 'JV/Getopt-Long-2.50.tar.gz',
         'FILES'        => q[cpan/Getopt-Long],
         'EXCLUDED'     => [
             qr{^examples/},
diff --git a/cpan/Getopt-Long/lib/Getopt/Long.pm b/cpan/Getopt-Long/lib/Getopt/Long.pm
index 5e1834f3ca..664c8b63c9 100644
--- a/cpan/Getopt-Long/lib/Getopt/Long.pm
+++ b/cpan/Getopt-Long/lib/Getopt/Long.pm
@@ -4,23 +4,24 @@
 # Author          : Johan Vromans
 # Created On      : Tue Sep 11 15:00:12 1990
 # Last Modified By: Johan Vromans
-# Last Modified On: Thu Jun  9 14:50:37 2016
-# Update Count    : 1699
+# Last Modified On: Sat May 27 12:11:39 2017
+# Update Count    : 1715
 # Status          : Released
 
 ################ Module Preamble ################
 
-package Getopt::Long;
-
 use 5.004;
 
 use strict;
+use warnings;
+
+package Getopt::Long;
 
 use vars qw($VERSION);
-$VERSION        =  2.49;
+$VERSION        =  2.50;
 # For testing versions only.
 use vars qw($VERSION_STRING);
-$VERSION_STRING = "2.49";
+$VERSION_STRING = "2.50";
 
 use Exporter;
 use vars qw(@ISA @EXPORT @EXPORT_OK);
@@ -1045,7 +1046,8 @@ sub FindOption ($$$$$) {
 	# Complete the option name, if appropriate.
 	if ( @hits == 1 && $hits[0] ne $opt ) {
 	    $tryopt = $hits[0];
-	    $tryopt = lc ($tryopt) if $ignorecase;
+	    $tryopt = lc ($tryopt)
+	      if $ignorecase > (($bundling && length($tryopt) == 1) ? 1 : 0);
 	    print STDERR ("=> option \"$opt\" -> \"$tryopt\"\n")
 		if $debug;
 	}
@@ -1110,10 +1112,23 @@ sub FindOption ($$$$$) {
 
     # Check if there is an option argument available.
     if ( $gnu_compat ) {
-	my $optargtype = 0; # 0 = none, 1 = empty, 2 = nonempty
-	$optargtype = ( !defined($optarg) ? 0 : ( (length($optarg) == 0) ? 1 : 2 ) );
-    return (1, $opt, $ctl, defined($ctl->[CTL_DEFAULT]) ? $ctl->[CTL_DEFAULT] : undef)
-	  if (($optargtype == 0) && !$mand);
+	my $optargtype = 0; # none, 1 = empty, 2 = nonempty, 3 = aux
+	if ( defined($optarg) ) {
+	    $optargtype = (length($optarg) == 0) ? 1 : 2;
+	}
+	elsif ( defined $rest || @$argv > 0 ) {
+	    # GNU getopt_long() does not accept the (optional)
+	    # argument to be passed to the option without = sign.
+	    # We do, since not doing so breaks existing scripts.
+	    $optargtype = 3;
+	}
+	if(($optargtype == 0) && !$mand) {
+	    my $val
+	      = defined($ctl->[CTL_DEFAULT]) ? $ctl->[CTL_DEFAULT]
+	      : $type eq 's'                 ? ''
+	      :                                0;
+	    return (1, $opt, $ctl, $val);
+	}
 	return (1, $opt, $ctl, $type eq 's' ? '' : 0)
 	  if $optargtype == 1;  # --foo=  -> return nothing
     }
@@ -1753,12 +1768,12 @@ destination for the option:
     GetOptions ("library=s" => \@libfiles);
 
 Alternatively, you can specify that the option can have multiple
-values by adding a "@", and pass a scalar reference as the
+values by adding a "@", and pass a reference to a scalar as the
 destination:
 
     GetOptions ("library=s@" => \$libfiles);
 
-Used with the example above, C<@libfiles> (or C<@$libfiles>) would
+Used with the example above, C<@libfiles> c.q. C<@$libfiles> would
 contain two strings upon completion: C<"lib/stdlib"> and
 C<"lib/extlib">, in that order. It is also possible to specify that
 only integer or floating point numbers are acceptable values.
@@ -2322,11 +2337,14 @@ do. Without C<gnu_compat>, C<--opt=> gives an error. With C<gnu_compat>,
 C<--opt=> will give option C<opt> and empty value.
 This is the way GNU getopt_long() does it.
 
+Note that C<--opt value> is still accepted, even though GNU
+getopt_long() doesn't.
+
 =item gnu_getopt
 
 This is a short way of setting C<gnu_compat> C<bundling> C<permute>
 C<no_getopt_compat>. With C<gnu_getopt>, command line handling should be
-fully compatible with GNU getopt_long().
+reasonably compatible with GNU getopt_long().
 
 =item require_order