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-rw-r--r--test/rdoc/test_rdoc_rubygems_hook.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/rdoc/test_rdoc_rubygems_hook.rb b/test/rdoc/test_rdoc_rubygems_hook.rb
index f5177e4a8c..fb8dbd1fea 100644
--- a/test/rdoc/test_rdoc_rubygems_hook.rb
+++ b/test/rdoc/test_rdoc_rubygems_hook.rb
@@ -25,6 +25,7 @@ class TestRDocRubygemsHook < Test::Unit::TestCase
SOURCE_DATE_EPOCH
BUNDLER_VERSION
HOME
+ RDOCOPT
].map {|e| [e, ENV.delete(e)]}.to_h
ENV["HOME"] = @tempdir