Fix (*CacheDir).Get() panic message

Missed text from a previous refactor.

diff --git a/cachegob.go b/cachegob.go
index 34024be970df49a3bdcd7f08e6d69ec9a0925071..e275825882395893e2fd2efba94a6e31e613208b 100755 (executable)
--- a/cachegob.go
+++ b/cachegob.go
@@ -52,7 +52,7 @@ func (cd *CacheDir) Get(v interface{}, key ...CacheKey) (mtime time.Time, err er
        }
        if !val.CanSet() {
                // API caller error
-               panic("(*cacheDir).Get(): given Cacheable is not setable")
+               panic("(*CacheDir).Get(): given interface{} is not setable")
        }
 
        lock, err := cd.Lock(key...)