wip: age based filtering of options

src/BusProNet/XmlParser/BirthYearConstraintParser.php

@@ -24,7 +24,7 @@ class BirthYearConstraintParser implements AgeConstraintParserInterface
     public function parse(string $constraintData): AgeConstraintResult
     {
         if (false === $this->canParse($constraintData)) {
-            throw new \InvalidArgumentException('Cannot parse constraint data: ' . $constraintData);
+            throw new \InvalidArgumentException('Cannot parse constraint data: '.$constraintData);
         }
 
         $yearData = substr($constraintData, strlen(self::BIRTH_YEAR_PREFIX));
@@ -64,4 +64,4 @@ class BirthYearConstraintParser implements AgeConstraintParserInterface
     {
         return 'birth_year';
     }
-}
+}