make: add ruleset.xml for better style checks

Makefile

@@ -302,7 +302,7 @@ sweep: force
 	    xargs -0 -n1 scripts/cleanfile
 
 style: want-pear-PHP_CodeSniffer
-	@(phpcs --tab-width=4 --standard=PSR2 ${.CURDIR}/src/opnsense/mvc \
+	@(phpcs --standard=ruleset.xml ${.CURDIR}/src/opnsense/mvc \
 	    || true) > ${.CURDIR}/.style.out
 	@echo -n "Total number of style warnings: "
 	@grep '| WARNING' ${.CURDIR}/.style.out | wc -l
@@ -312,7 +312,7 @@ style: want-pear-PHP_CodeSniffer
 	@rm ${.CURDIR}/.style.out
 
 stylefix: want-pear-PHP_CodeSniffer
-	phpcbf --standard=PSR2 ${.CURDIR}/src/opnsense/mvc || true
+	phpcbf --standard=ruleset.xml ${.CURDIR}/src/opnsense/mvc || true
 
 setup: force
 	${.CURDIR}/src/etc/rc.php_ini_setup

ruleset.xml

+<?xml version="1.0"?>
+<ruleset name="PSR2+">
+  <description>Slightly enhanced version of the PSR2 standard</description>
+  <rule ref="Squiz.WhiteSpace.SemicolonSpacing"/>
+  <rule ref="PSR2"/>
+</ruleset>