tests/run.sh: Don't require diff -N.

diff --git a/tests/run.sh b/tests/run.sh
index 89b84f2b46808f44776d414e34dc1d192255d45f..65dad840bc9c2500718ba8ddf8bb1bacd0dfb71f 100755 (executable)
--- a/tests/run.sh
+++ b/tests/run.sh
@@ -14,8 +14,8 @@ for file in *.test; do
 
     # Check if the output matches the expected one. If not abort with exit
     # code 1.
-    diff -u -N $file.out $file.out.sh  || exit 1
-    diff -u -N $file.out $file.out.zsh || exit 1
+    diff -u $file.out $file.out.sh  || exit 1
+    diff -u $file.out $file.out.zsh || exit 1
 
     # Remove temporary directory.
     rm -rf tmp