Suppress "literal string will be frozen" warnings

lib/rabbit/source/argf.rb

@@ -1,3 +1,19 @@
+# Copyright (C) 2004-2024  Sutou Kouhei <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 require "rabbit/source/base"
 
 module Rabbit
@@ -21,7 +37,7 @@ def _read
           @argf.read
         rescue
           @logger.error($!.message)
-          ""
+          +""
         end
       end
     end

lib/rabbit/source/file.rb

@@ -1,3 +1,19 @@
+# Copyright (C) 2004-2024  Sutou Kouhei <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 require 'rabbit/source/base'
 
 module Rabbit
@@ -25,7 +41,7 @@ def _read
         rescue SourceUnreadableError
           @logger.error($!.message)
           @mtime = Time.now + LimitAccessInterval::MINIMUM_ACCESS_TIME
-          ""
+          +""
         end
       end
 

lib/rabbit/source/uri.rb

@@ -1,3 +1,19 @@
+# Copyright (C) 2004-2024  Sutou Kouhei <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 require "uri"
 require "open-uri"
 
@@ -52,7 +68,7 @@ def _read
         rescue
           @logger.error($!.message)
           @last_modified = Time.now + MINIMUM_ACCESS_TIME
-          ""
+          +""
         end
       end
 

test/parser/test-rd.rb

@@ -1,4 +1,4 @@
-# Copyright (C) 2014-2019  Kouhei Sutou <[email protected]>
+# Copyright (C) 2014-2024  Sutou Kouhei <[email protected]>
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -32,11 +32,11 @@ def match?(content)
       end
 
       def test_with_space
-        assert_true(match?("= Hello"))
+        assert_true(match?(+"= Hello"))
       end
 
       def test_no_space
-        assert_true(match?("=Hello"))
+        assert_true(match?(+"=Hello"))
       end
     end
   end

test/parser/test-wiki.rb

@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2019  Kouhei Sutou <[email protected]>
+# Copyright (C) 2015-2024  Sutou Kouhei <[email protected]>
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -34,7 +34,7 @@ class ImageTest < self
     class InlineTest < self
       test "unsupported" do
         image_path = fixture_path("image/png/lavie.png")
-        wiki_text = <<-WIKI
+        wiki_text = +<<-WIKI
 ! Title
 
 ! Slide

test/test-source.rb

@@ -1,4 +1,4 @@
-# Copyright (C) 2004-2019  Kouhei Sutou <[email protected]>
+# Copyright (C) 2004-2024  Kouhei Sutou <[email protected]>
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -35,7 +35,7 @@ def guess_encoding(string)
 
     class ReadTest < self
       def test_binary
-        pdf_header = "%PDF-1.5\n%\xb5\xed\xae\xfb\n"
+        pdf_header = +"%PDF-1.5\n%\xb5\xed\xae\xfb\n"
         pdf_header.force_encoding("ASCII-8BIT")
         assert_equal(pdf_header, read(pdf_header))
       end