biuniq: fix

1 files changed, 1 insertions, 0 deletions

diff --git a/biuniq b/biuniq
index 097c88a..b191ab0 100755
--- a/biuniq
+++ b/biuniq
@@ -14,6 +14,7 @@ while line1 = f1.gets
   line1.strip!
 
   line2 = f2.gets
+  if line2 == nil then line2 = "" end
   line2.strip!
   
   if !d1.include? line1 and !d2.include? line2