[ruby/stringio] Get rid of String#undump for ruby 2.4 or earlier

https://github.com/ruby/stringio/commit/4dfd997e0a
2019-09-29 18:13:00 +09:00 · 2019-09-29 18:13:00 +09:00 · 7f30783af7
commit 7f30783af7
parent 94db8cda9b
1 changed files with 1 additions and 1 deletions
--- a/ext/stringio/stringio.gemspec
+++ b/ext/stringio/stringio.gemspec
@ -5,7 +5,7 @@ source_version = ["", "ext/stringio/"].find do |dir|
  begin
    break File.open(File.join(__dir__, "#{dir}stringio.c")) {|f|
      f.gets("\n#define STRINGIO_VERSION ")
-      f.gets[/\s*(".+")/, 1].undump
+      f.gets[/\s*"(.+)"/, 1]
    }
  rescue Errno::ENOENT
  end