Do not include a backtick in error messages and backtraces

[Feature #16495]

1 files changed, 2 insertions, 2 deletions

diff --git a/test/ruby/test_module.rb b/test/ruby/test_module.rb
index 4722fa22e0..75d8d909d7 100644
--- a/test/ruby/test_module.rb
+++ b/test/ruby/test_module.rb
@@ -1477,7 +1477,7 @@ class TestModule < Test::Unit::TestCase
     end
 
     %w(object_id __send__ initialize).each do |n|
-      assert_in_out_err([], <<-INPUT, [], %r"warning: undefining `#{n}' may cause serious problems$")
+      assert_in_out_err([], <<-INPUT, [], %r"warning: undefining '#{n}' may cause serious problems$")
         $VERBOSE = false
         Class.new.instance_eval { undef_method(:#{n}) }
       INPUT
@@ -3348,7 +3348,7 @@ class TestModule < Test::Unit::TestCase
       methods = singleton_class.private_instance_methods(false)
       assert_include(methods, :#{method}, ":#{method} should be private")
 
-      assert_raise_with_message(NoMethodError, /^private method `#{method}' called for /) {
+      assert_raise_with_message(NoMethodError, /^private method '#{method}' called for /) {
         recv = self
         recv.#{method}
       }