From: Graham Knop <haarg@haarg.org>
Date: Thu, 31 Oct 2013 18:05:44 +0000 (-0400)
Subject: don't output env vars that are already set
X-Git-Tag: v2.000_000~42
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=f643299c81fd737426ee00cec6882f3ab0579811;p=p5sagit%2Flocal-lib.git

don't output env vars that are already set
---

diff --git a/lib/local/lib.pm b/lib/local/lib.pm
index 9943542..40fcf68 100644
--- a/lib/local/lib.pm
+++ b/lib/local/lib.pm
@@ -305,6 +305,10 @@ sub environment_vars_string_for {
         && ${$value->[0]} eq $name) {
       next;
     }
+    if (!ref $value
+        && $value eq $ENV{$name}) {
+      next;
+    }
     $out .= $self->$build_method($name, $value);
   }
   return $out;