[interchange] fixed detection of labels for [loop acclist=1] so 0 is recognized as label

commit 27676dacd741b4fbdc2509be233c1a5487636d58
Author: Stefan Hornburg (Racke) <[email protected]>
Date:   Thu Apr 15 14:35:23 2010 +0200

    fixed detection of labels for [loop acclist=1] so 0 is recognized as label
    and strings consisting of whitespace are discarded

 lib/Vend/Interpolate.pm |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/Vend/Interpolate.pm b/lib/Vend/Interpolate.pm
index 50dd129..d4e2a3b 100644
--- a/lib/Vend/Interpolate.pm
+++ b/lib/Vend/Interpolate.pm
@@ -4907,7 +4907,7 @@ sub tag_loop_list {
 			my @items = split /\s*,\s*/, $list;
 			for(@items) {
 				my ($o, $l) = split /=/, $_;
-				$l = $o unless $l;
+				$l = $o unless $l =~ /\S/;
 				push @rows, [ $o, $l ];
 			}
 		};