Exclude test from phpcs and fix tabs and spaces in phpunit.xml

.travis.yml

@@ -6,11 +6,11 @@ cache:
 install:
   - 'composer install'
 php:
-  - '5.6'
   - '7.0'
   - '7.1'
   - '7.2'
 script:
   - 'composer lint'
   - 'composer sniff-summary'
+  - 'composer sniff-errors-only'
   - 'composer test'

phpcs.xml

@@ -36,6 +36,9 @@
 
     <rule ref="Generic.ControlStructures.InlineControlStructure"/>
     <rule ref="Generic.Formatting.SpaceAfterCast"/>
+    <rule ref="Generic.Formatting.SpaceAfterNot">
+        <severity>0</severity>
+    </rule>
     <rule ref="Generic.Functions.CallTimePassByReference"/>
     <rule ref="Generic.NamingConventions.UpperCaseConstantName"/>
     <rule ref="Generic.PHP.LowerCaseConstant"/>

phpunit.xml

@@ -7,7 +7,7 @@
 			<file>tests/UdoitTest.php</file>
 			<file>tests/IndexTest.php</file>
 			<file>tests/FunctionalTests.php</file>
-            <file>tests/UdoitStatsTest.php</file>
+			<file>tests/UdoitStatsTest.php</file>
 		</testsuite>
 	</testsuites>
 	<php>
@@ -15,12 +15,12 @@
 	</php>
 	<filter>
 		<whitelist>
-            <directory suffix=".php">./</directory>
-            <exclude>
-                <directory>./lib/quail</directory>
-                <directory>./vendor</directory>
-                <directory>./tests</directory>
-            </exclude>
+			<directory suffix=".php">./</directory>
+			<exclude>
+				<directory>./lib/quail</directory>
+				<directory>./vendor</directory>
+				<directory>./tests</directory>
+			</exclude>
 		</whitelist>
 	</filter>
 </phpunit>