Merge #515: Fix typo

9b7c47a Fix typo (Dimitris Apostolou)

Pull request description:

Tree-SHA512: d61f3451152ed6094368456e1c57d7a7ff85f975045bedff4fcb5c446894d9c9029f6ff4bfe724eba8501843316bd965bff1a302a7ea4d1b9c3e4de2059cadd0

src/java/org/bitcoin/NativeSecp256k1Test.java

@@ -52,7 +52,7 @@ public class NativeSecp256k1Test {
     }
 
     /**
-      * This tests secret key verify() for a invalid secretkey
+      * This tests secret key verify() for an invalid secretkey
       */
     public static void testSecKeyVerifyNeg() throws AssertFailException{
         boolean result = false;