Added unit test + changelog

CodeSniffer/Standards/Squiz/Tests/Strings/DoubleQuoteUsageUnitTest.inc

@@ -7,6 +7,7 @@ $string = 'Hello'."$there '".'hi';
 $string = "My name is 'Greg'";
 $string = "Hello"." There"."\n";
 $string = "Hello There\f";
+$string = "Hello There\b";
 $string = "Hello\vThere";
 $string = "\x0";
 $string = 'Hello '.$there.' Greg';

CodeSniffer/Standards/Squiz/Tests/Strings/DoubleQuoteUsageUnitTest.php

@@ -47,10 +47,10 @@ public function getErrorList()
                 5  => 1,
                 6  => 1,
                 8  => 2,
-                13 => 1,
                 14 => 1,
-                17 => 1,
+                15 => 1,
                 18 => 1,
+                19 => 1,
                );
 
     }//end getErrorList()

package.xml

@@ -39,6 +39,7 @@ http://pear.php.net/dtd/package-2.0.xsd">
     -- Installed standards appear when using the -i arg, and can be referenced in rulesets using only their name
     -- Set paths by running: phpcs --config-set installed_paths /path/one,/path/two,...
   - PSR2 ClassDeclarationSniff now allows a list of extended interfaces to be split across multiple lines
+  - Squiz DoubleQuoteUsageSniff now allows \b in double quoted strings
   - Generic ForbiddenFunctionsSniff now ignores object creation
     -- This is a further fix for bug #20100 : incorrect Function mysql() has been deprecated report
   - Fixed bug #20136 : Squiz_Sniffs_WhiteSpace_ScopeKeywordSpacingSniff and Traits