import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

build/win32/dumpenv4python.pl

@@ -0,0 +1,19 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# See build/autoconf/hooks.m4
+
+use Data::Dumper;
+
+$Data::Dumper::Terse = 1;
+$Data::Dumper::Indent = 0;
+
+# We can't use perl hashes because Mozilla-Build's perl is 5.6, and perl
+# 5.6's Data::Dumper doesn't have Pair to change ' => ' into ' : '.
+@data = (
+  ['env', [map { [$_, $ENV{$_}] } keys %ENV]],
+  ['args', \@ARGV],
+);
+
+print Dumper \@data;