fix a couple string escapes.

basis/xml/syntax/syntax-tests.factor

@@ -141,7 +141,7 @@ XML-NS: foo http://blah.com
 ] unit-test
 
 {
-    "<?xml version=\"1.0\" encoding=\"UTF-8\"?><a>asdf<asdf/>asdf2</a"
+    "<?xml version=\"1.0\" encoding=\"UTF-8\"?><a>asdf<asdf/>asdf2</a>"
 } [
     default-prolog
     "asdf"

extra/yaml/yaml-tests.factor

@@ -94,10 +94,10 @@ ${ test-types } [ $ test-types >yaml yaml> ] unit-test
 ! Anchors
 CONSTANT: test-anchors "- &1 \"1\"
 - *1
-- &2 ["1","2"]
+- &2 [\"1\",\"2\"]
 - *2
 - &3
-  *1 : "one"
+  *1 : \"one\"
 - *3
 "
 CONSTANT: test-anchors-obj {