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-rw-r--r--lib/webrick/httpauth/userdb.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/webrick/httpauth/userdb.rb b/lib/webrick/httpauth/userdb.rb
index 005c18dfd0..7a17715cdf 100644
--- a/lib/webrick/httpauth/userdb.rb
+++ b/lib/webrick/httpauth/userdb.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
#--
# httpauth/userdb.rb -- UserDB mix-in module.
#