xmlsecurity: clean-up code a bit

Reviewed-on: https://gerrit.libreoffice.org/64294
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
(cherry picked from commit 40d52cfe)

Change-Id: I4a43f1f33f73919f56150310e7d05244d81b7510

xmlsecurity/source/xmlsec/nss/xmlsignature_nssimpl.cxx

@@ -271,14 +271,14 @@ OUString SAL_CALL XMLSignature_NssImpl::getImplementationName() {
 }
 
 /* XServiceInfo */
-sal_Bool SAL_CALL XMLSignature_NssImpl::supportsService( const OUString& serviceName) {
-    Sequence< OUString > seqServiceNames = getSupportedServiceNames() ;
-    const OUString* pArray = seqServiceNames.getConstArray() ;
-    for( sal_Int32 i = 0 ; i < seqServiceNames.getLength() ; i ++ ) {
-        if( *( pArray + i ) == serviceName )
-            return true ;
+sal_Bool SAL_CALL XMLSignature_NssImpl::supportsService(const OUString& rServiceName)
+{
+    for (OUString const & rCurrentServiceName : getSupportedServiceNames())
+    {
+        if (rCurrentServiceName == rServiceName)
+            return true;
     }
-    return false ;
+    return false;
 }
 
 /* XServiceInfo */