Updated bash stub, added more checks to hotfix

src/Hotfix/Hotfix.php

@@ -87,16 +87,25 @@ class Hotfix
 
     public function getName()
     {
+        if (!array_key_exists('hotfix', $this->header)) {
+            return "Untitled hotfix";
+        }
         return $this->header['hotfix'];
     }
     
     public function getInfo()
     {
+        if (!array_key_exists('info', $this->header)) {
+            return "No additional information";
+        }
         return $this->header['info'];
     }
 
     public function getAuthor()
     {
+        if (!array_key_exists('author', $this->header)) {
+            return "Unknown author";
+        }
         return $this->header['author'];
     }