Signed-off-by: Colin Kelley <colindkelley@gmail.com>
---
 lib/uri/generic.rb | 1 +++---------------------
 1 file changed, 3 insertions(+), 1 deletions(-)

diff --git a/lib/uri/generic.rb b/lib/uri/generic.rb
index 5c134e59..5d06057 100644
--- a/lib/uri/generic.rb
+++ b/lib/uri/generic.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # = uri/generic.rb
 #
 # Author:: Akira Yamada <akira@ruby-lang.org>
@@ -1339,7 +1341,7 @@ def normalize!
     # Constructs String from URI
     #
     def to_s
-      str = ''
+      str = String.new
       if @scheme
         str << @scheme
         str << ':'.freeze