Corrects CheckCode from Vulnerable to Appears

Co-authored-by: Julien Voisin <[email protected]>

Author: msutovsky-r7

modules/exploits/windows/persistence/linqpad_deserialization_persistence.rb

@@ -63,7 +63,7 @@ def check
     elsif file?(datastore['CACHE_PATH'] + '/autorefcache46.2.dat')
       return Exploit::CheckCode::Safe('Contains not vulnerable version of LINQPad')
     else
-      return Exploit::CheckCode::Appears('LINPad and vulnerable cache file present, target possibly exploitable')
+      return Exploit::CheckCode::Appears('LINQPad and vulnerable cache file present, target possibly exploitable')
     end
   end