Space after comma in array

Is the more common syntax (psalm, phpstan, WP) and also already used in e.g. ArrayShape.php

Author: kkmuffme

src/Types/AbstractList.php

@@ -81,7 +81,7 @@ public function __toString(): string
         }
 
         if ($this->keyType) {
-            return 'array<' . $this->keyType . ',' . $this->valueType . '>';
+            return 'array<' . $this->keyType . ', ' . $this->valueType . '>';
         }
 
         if ($this->valueType instanceof Compound) {

src/Types/Iterable_.php

@@ -30,7 +30,7 @@ public function __toString(): string
         }
 
         if ($this->keyType) {
-            return 'iterable<' . $this->keyType . ',' . $this->valueType . '>';
+            return 'iterable<' . $this->keyType . ', ' . $this->valueType . '>';
         }
 
         return 'iterable<' . $this->valueType . '>';