Return binary git paths, not potentially invalid UTF8

ext/rugged/rugged.c

@@ -530,7 +530,7 @@ VALUE rb_merge_file_result_fromC(const git_merge_file_result *result)
 	VALUE rb_result = rb_hash_new();
 
 	rb_hash_aset(rb_result, CSTR2SYM("automergeable"), result->automergeable ? Qtrue : Qfalse);
-	rb_hash_aset(rb_result, CSTR2SYM("path"),          result->path ? rb_str_new_utf8(result->path) : Qnil);
+	rb_hash_aset(rb_result, CSTR2SYM("path"),          result->path ? rb_str_new2(result->path) : Qnil);
 	rb_hash_aset(rb_result, CSTR2SYM("filemode"),      INT2FIX(result->mode));
 	rb_hash_aset(rb_result, CSTR2SYM("data"),          rb_str_new(result->ptr, result->len));
 

ext/rugged/rugged_index.c

@@ -513,7 +513,7 @@ static VALUE rb_git_indexentry_fromC(const git_index_entry *entry)
 
 	rb_entry = rb_hash_new();
 
-	rb_hash_aset(rb_entry, CSTR2SYM("path"), rb_str_new_utf8(entry->path));
+	rb_hash_aset(rb_entry, CSTR2SYM("path"), rb_str_new2(entry->path));
 	rb_hash_aset(rb_entry, CSTR2SYM("oid"), rugged_create_oid(&entry->id));
 
 	rb_hash_aset(rb_entry, CSTR2SYM("dev"), INT2FIX(entry->dev));

ext/rugged/rugged_submodule.c

@@ -558,7 +558,7 @@ static VALUE rb_git_submodule_path(VALUE self)
 
 	path = git_submodule_path(submodule);
 
-	return rb_str_new_utf8(path);
+	return rb_str_new2(path);
 }
 
 #define RB_GIT_OID_GETTER(_klass, _attribute) \

ext/rugged/rugged_tree.c

@@ -30,7 +30,7 @@ static VALUE rb_git_treeentry_fromC(const git_tree_entry *entry)
 
 	rb_entry = rb_hash_new();
 
-	rb_hash_aset(rb_entry, CSTR2SYM("name"), rb_str_new_utf8(git_tree_entry_name(entry)));
+	rb_hash_aset(rb_entry, CSTR2SYM("name"), rb_str_new2(git_tree_entry_name(entry)));
 	rb_hash_aset(rb_entry, CSTR2SYM("oid"), rugged_create_oid(git_tree_entry_id(entry)));
 
 	rb_hash_aset(rb_entry, CSTR2SYM("filemode"), INT2FIX(git_tree_entry_filemode(entry)));

test/index_test.rb

@@ -222,6 +222,17 @@ def test_conflicts
     assert_equal 3, conflicts[1][:theirs][:stage]
   end
 
+  def test_conflict_paths_are_binary_encoded
+    conflicts = @repo.index.conflicts
+
+    assert_equal 2, conflicts.size
+    conflicts.each do |conflict|
+      conflict.each do |type, data|
+        assert_equal Encoding::BINARY, data[:path].encoding
+      end
+    end
+  end
+
   def test_conflict_get
     conflict = @repo.index.conflict_get("conflicts-one.txt")