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-rw-r--r--lib/irb/src_encoding.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/irb/src_encoding.rb b/lib/irb/src_encoding.rb
index 958cef104c..32f997fc7c 100644
--- a/lib/irb/src_encoding.rb
+++ b/lib/irb/src_encoding.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
# DO NOT WRITE ANY MAGIC COMMENT HERE.
def default_src_encoding
return __ENCODING__