Update client/filejsonstore/filejsonstore_test.go

Fixed spelling error found during review.

Co-authored-by: Joshua Lock <jlock@vmware.com>
Signed-off-by: Fredrik Skogman <kommendorkapten@github.com>

client/filejsonstore/filejsonstore_test.go

@@ -15,7 +15,7 @@ type RawJSONStoreSuite struct{}
 
 var _ = check.Suite(&RawJSONStoreSuite{})
 
-// Hook up gocheck into the "go test" runnder
+// Hook up gocheck into the "go test" runner
 func Test(t *testing.T) { check.TestingT(t) }
 
 func (RawJSONStoreSuite) TestNewOk(c *check.C) {