fix unicode output

Author: williamboman

lib/diff-so-fancy.pl

@@ -5,6 +5,7 @@
 use File::Basename;
 
 use utf8;
+use open qw(:std :utf8); # http://stackoverflow.com/a/519359
 binmode STDOUT,':utf8';
 
 my $remove_file_add_header    = 1;

test/diff-so-fancy.bats

@@ -62,3 +62,9 @@ if begin"
   run printf "%s" "$output"
   assert_line --index 1 --partial "modified: cancel.png (binary)";
 }
+
+@test "Handle unicode characters in diff output" {
+  output=$( load_fixture "unicode" | $diff_so_fancy )
+  run printf "%s" "$output"
+  assert_line --index 5 --partial "åäöç"
+}

test/fixtures/unicode.diff

@@ -0,0 +1,7 @@
+diff --git a/unicodes b/unicodes
+index 223f57d..1c2066d 100644
+--- a/unicodes
++++ b/unicodes
+@@ -1 +1 @@
+-aao
++åäöç