Fix tests failing as of libxml2 2.9.12

Author: stephank

ext/dom/tests/DOMDocument_loadXML_error1.phpt

@@ -21,6 +21,6 @@ domdocumentloadxml_test_method.inc
 --EXPECTF--
 Warning: DOMDocument::load%r(XML){0,1}%r(): Opening and ending tag mismatch: title line 5 and book %s
 
-Warning: DOMDocument::load%r(XML){0,1}%r(): %rexpected '>'|Opening and ending tag mismatch: book line 5 and books%r %s
+Warning: DOMDocument::load%r(XML){0,1}%r(): %rexpected '>'|Opening and ending tag mismatch: book line (4|5) and books%r %s
 
 Warning: DOMDocument::load%r(XML){0,1}%r(): %rPremature end of data in tag books|EndTag: '<\/' not found in Entity, line: 13%r %s

ext/dom/tests/DOMDocument_load_error1.phpt

@@ -21,6 +21,6 @@ domdocumentload_test_method.inc
 --EXPECTF--
 Warning: DOMDocument::load%r(XML){0,1}%r(): Opening and ending tag mismatch: title line 5 and book %s
 
-Warning: DOMDocument::load%r(XML){0,1}%r(): %rexpected '>'|Opening and ending tag mismatch: book line 5 and books%r %s
+Warning: DOMDocument::load%r(XML){0,1}%r(): %rexpected '>'|Opening and ending tag mismatch: book line (4|5) and books%r %s
 
 Warning: DOMDocument::load%r(XML){0,1}%r(): %rPremature end of data in tag books|EndTag: '<\/' not found%r %s