Added missing test file

Author: gsherwood

package.xml

@@ -514,6 +514,7 @@ http://pear.php.net/dtd/package-2.0.xsd">
         <file baseinstalldir="PHP/CodeSniffer" name="DisallowAlternativePHPTagsUnitTest.1.inc.fixed" role="test" />
         <file baseinstalldir="PHP/CodeSniffer" name="DisallowAlternativePHPTagsUnitTest.2.inc" role="test" />
         <file baseinstalldir="PHP/CodeSniffer" name="DisallowAlternativePHPTagsUnitTest.2.inc.fixed" role="test" />
+        <file baseinstalldir="PHP/CodeSniffer" name="DisallowAlternativePHPTagsUnitTest.3.inc" role="test" />
         <file baseinstalldir="PHP/CodeSniffer" name="DisallowAlternativePHPTagsUnitTest.php" role="test" />
         <file baseinstalldir="PHP/CodeSniffer" name="DisallowShortOpenTagUnitTest.1.inc" role="test" />
         <file baseinstalldir="PHP/CodeSniffer" name="DisallowShortOpenTagUnitTest.1.inc.fixed" role="test" />