fix errors to send with lastline

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

error.go

@@ -141,8 +141,7 @@ func generateGopherErrorResponseFromCode(code ErrorCode) []byte {
 
 /* Generates gopher protocol compatible error response for response code */
 func generateGopherErrorResponse(code ErrorResponseCode) []byte {
-    b := buildError(code.String())
-    return append(b, []byte(LastLine)...)
+    return buildError(code.String())
 }
 
 /* Error response code to string */

format.go

@@ -69,6 +69,7 @@ var FileExtMap = map[string]ItemType{
 func buildError(selector string) []byte {
     ret := string(TypeError)
     ret += selector + DOSLineEnd
+    ret += LastLine
     return []byte(ret)
 }