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-rw-r--r--activesupport/lib/active_support/core_ext/string/behavior.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/string/behavior.rb b/activesupport/lib/active_support/core_ext/string/behavior.rb
index 710f1f4670..e63888991d 100644
--- a/activesupport/lib/active_support/core_ext/string/behavior.rb
+++ b/activesupport/lib/active_support/core_ext/string/behavior.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class String
# Enables more predictable duck-typing on String-like classes. See <tt>Object#acts_like?</tt>.
def acts_like_string?