fix maxNonce comment (#491)

diff --git a/mining/cpuminer/cpuminer.go b/mining/cpuminer/cpuminer.go
index 80d7f8d..3c3effc 100644 (file)
--- a/mining/cpuminer/cpuminer.go
+++ b/mining/cpuminer/cpuminer.go
@@ -19,7 +19,7 @@ import (
 )
 
 const (
-       maxNonce          = ^uint64(0) // 2^32 - 1
+       maxNonce          = ^uint64(0) // 2^64 - 1
        defaultNumWorkers = 1
        hashUpdateSecs    = 1
 )