Fix typos in string_ext_test.rb [ci skip]

activesupport/test/core_ext/string_ext_test.rb

@@ -216,14 +216,14 @@ def test_truncate
     assert_equal "Hello Wor...", "Hello World!!".truncate(12)
   end
 
-  def test_truncate_with_omission_and_seperator
+  def test_truncate_with_omission_and_separator
     assert_equal "Hello[...]", "Hello World!".truncate(10, :omission => "[...]")
     assert_equal "Hello[...]", "Hello Big World!".truncate(13, :omission => "[...]", :separator => ' ')
     assert_equal "Hello Big[...]", "Hello Big World!".truncate(14, :omission => "[...]", :separator => ' ')
     assert_equal "Hello Big[...]", "Hello Big World!".truncate(15, :omission => "[...]", :separator => ' ')
   end
 
-  def test_truncate_with_omission_and_regexp_seperator
+  def test_truncate_with_omission_and_regexp_separator
     assert_equal "Hello[...]", "Hello Big World!".truncate(13, :omission => "[...]", :separator => /\s/)
     assert_equal "Hello Big[...]", "Hello Big World!".truncate(14, :omission => "[...]", :separator => /\s/)
     assert_equal "Hello Big[...]", "Hello Big World!".truncate(15, :omission => "[...]", :separator => /\s/)
@@ -234,7 +234,7 @@ def test_truncate_words
     assert_equal "Hello Big...", "Hello Big World!".truncate_words(2)
   end
 
-  def test_truncate_words_with_ommission
+  def test_truncate_words_with_omission
     assert_equal "Hello Big World!", "Hello Big World!".truncate_words(3, :omission => "[...]")
     assert_equal "Hello Big[...]", "Hello Big World!".truncate_words(2, :omission => "[...]")
   end
@@ -245,7 +245,7 @@ def test_truncate_words_with_separator
     assert_equal "Hello\n<br>Big...", "Hello\n<br>Big<br>Wide<br>World!".truncate_words(2, :separator => '<br>')
   end
 
-  def test_truncate_words_with_separator_and_ommission
+  def test_truncate_words_with_separator_and_omission
     assert_equal "Hello<br>Big<br>World![...]", "Hello<br>Big<br>World!<br>".truncate_words(3, :omission => "[...]", :separator => '<br>')
     assert_equal "Hello<br>Big<br>World!", "Hello<br>Big<br>World!".truncate_words(3, :omission => "[...]", :separator => '<br>')
   end