Rework the phpcs-ruleset

.phpcs.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
-<ruleset name="SS3">
-    <description>Coding standard for SilverStripe 4.x</description>
+<ruleset name="Custom">
+    <description>A custom coding standard</description>
 
     <!-- Don't sniff third party libraries -->
     <exclude-pattern>*/themes/simple/*</exclude-pattern>
@@ -10,16 +10,24 @@
     <!-- Show progress and output sniff names on violation, and add colours -->
     <arg value="sp"/>
     <arg name="colors"/>
+    <arg name="report" value="csv"/>
+    <arg name="extensions" value="php/php,inc/php"/>
 
     <!-- Use PSR-2 as a base standard -->
     <rule ref="PSR2">
+        <!-- Allow Windows-like EOL-characters -->
+        <exclude name="Generic.Files.LineEndings.InvalidEOLChar"/>
         <!-- Allow classes to not declare a namespace -->
         <exclude name="PSR1.Classes.ClassDeclaration.MissingNamespace"/>
-
+        <!-- Allow namespaces without a following EOL-character -->
+        <exclude name="PSR2.Namespaces.NamespaceDeclaration.BlankLineAfter"/>
+        <!-- Allow files to have no EOL-character at the end of the file -->
+        <exclude name="PSR2.Files.EndFileNewline.NoneFound"/>
         <!-- Allow underscores in class names -->
         <exclude name="Squiz.Classes.ValidClassName.NotCamelCaps"/>
-
         <!-- Allow non camel cased method names -->
         <exclude name="PSR1.Methods.CamelCapsMethodName.NotCamelCaps"/>
     </rule>
+    <!-- Force files to have no EOL-character at the end of file -->
+    <rule ref="Generic.Files.EndFileNoNewline.Found"/>
 </ruleset>