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-rw-r--r--test/test_expect_100.rb5
1 files changed, 3 insertions, 2 deletions
diff --git a/test/test_expect_100.rb b/test/test_expect_100.rb
index 1701bca..f34c29e 100644
--- a/test/test_expect_100.rb
+++ b/test/test_expect_100.rb
@@ -1,5 +1,6 @@
 # Copyright (C) 2013-2015 all contributors <yahns-public@yhbt.net>
 # License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
+# frozen_string_literal: true
 require_relative 'server_helper'
 
 class TestExpect100 < Testcase
@@ -161,8 +162,8 @@ class TestExpect100 < Testcase
     end
     c = get_tcp_client(host, port)
     if body.size > 0
-      r = "PUT / HTTP/1.0\r\nExpect: 100-continue\r\n"
-      r << "Content-Length: #{body.size}\r\n\r\n#{body}"
+      r = "PUT / HTTP/1.0\r\nExpect: 100-continue\r\n" \
+          "Content-Length: #{body.size}\r\n\r\n#{body}"
     else
       r = "PUT / HTTP/1.0\r\nExpect: 100-continue\r\n\r\n"
     end