https://git.ruby-lang.org/ruby.git/commit/?id=fc4dd7d3e2

From fc4dd7d3e20b4eaf02d1dd59787abdc4c6c24e3a Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Sun, 7 Jul 2019 19:05:33 +0900
Subject: Git branch name can contain `#{}` too


diff --git a/tool/file2lastrev.rb b/tool/file2lastrev.rb
index eb0cd56..e39e742 100755
--- a/tool/file2lastrev.rb
+++ b/tool/file2lastrev.rb
@@ -69,7 +69,8 @@ vcs = nil https://github.com/ruby/ruby/blob/trunk/tool/file2lastrev.rb#L69
           e = '..'
           limit = @limit
           name = branch.sub(/\A(.{#{limit-e.size}}).{#{e.size+1},}/o) {$1+e}
-          "#define RUBY_BRANCH_NAME #{name.dump}"
+          name = name.dump.sub(/\\#/, '#')
+          "#define RUBY_BRANCH_NAME #{name}"
         end,
         if title
           title = title.dump.sub(/\\#/, '#')
-- 
cgit v0.10.2


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