distort-stl: debugging, fix a perl warning

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/distort-stl b/distort-stl
index 1f177dc507f80affa8083f8307e0832737b5aa53..a470ae39c68a34965ea9fd5f5a3c0e66ddcf6a71 100755 (executable)
--- a/distort-stl
+++ b/distort-stl
@@ -32,7 +32,7 @@ use Data::Dumper;
 
 sub TAU () { M_PI * 2; }
 
-my $ps = %ENV{DISTORT_PS};
+my $ps = $ENV{DISTORT_PS};
 if ($ps) {
     open PS, "> $ps" or die $!;
     print PS "%!\n";