Merge branch 'unsupportedPacket' of https://github.com/pgpainless/bc-java into pgpainless-unsupportedPacket

Author: dghgit

pg/src/main/java/org/bouncycastle/bcpg/S2K.java

@@ -98,7 +98,7 @@ public class S2K
             break;
 
         default:
-            throw new IllegalStateException("Invalid S2K type: " + type);
+            throw new UnsupportedPacketVersionException("Invalid S2K type: " + type);
         }
     }