Normalize xml ruleset file

Author: brianvarskonst

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
             - run: xmllint --noout --schema vendor/squizlabs/php_codesniffer/phpcs.xsd Brianvarskonst/ruleset.xml
             - run: xmllint --noout --schema vendor/squizlabs/php_codesniffer/phpcs.xsd phpcs.Brianvarskonst.xml
             - run: xmllint --noout --schema vendor/squizlabs/php_codesniffer/phpcs.xsd phpcs.xml.dist
-            - run: diff -Bw Brianvarskonst/ruleset.xml <(xmllint --format Brianvarskonst/ruleset.xml)
+            - run: diff -Bw <(./bin/normalize.sh Brianvarskonst/ruleset.xml) <(./bin/normalize.sh <(xmllint --format Brianvarskonst/ruleset.xml))
             - run: diff -Bw phpcs.brianvarskonst.xml <(xmllint --format phpcs.brianvarskonst.xml)
             - run: diff -Bw phpcs.xml.dist <(xmllint --format phpcs.xml.dist)
             - name: Stylecheck against Brianvarskonst itself

bin/normalize.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+normalize() {
+    xmllint --format "$1" |
+    sed -e 's/>\s*</></g' \
+        -e 's/\s\+/ /g' \
+        -e 's/^ *//' \
+        -e 's/ *$//'
+}
+
+normalize "$1"