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-rw-r--r--config/initializers/rack_lineprof.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/config/initializers/rack_lineprof.rb b/config/initializers/rack_lineprof.rb
index f7172fce9bc..e66bfd88907 100644
--- a/config/initializers/rack_lineprof.rb
+++ b/config/initializers/rack_lineprof.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
# The default colors of rack-lineprof can be very hard to look at in terminals
# with darker backgrounds. This patch tweaks the colors a bit so the output is
# actually readable.