plugin_framework, test block_input

Signed-off-by: fufesou <shuanglongchen@yeah.net>

src/plugin/callback_ext.rs

@@ -28,7 +28,7 @@ pub(super) fn ext_support_callback(
                 if crate::server::plugin_block_input(peer, block) == block {
                     null()
                 } else {
-                    make_return_code_msg(errno::ERR_CALLBACK_FAILED, "Failed to block input")
+                    make_return_code_msg(errno::ERR_CALLBACK_FAILED, "")
                 }
             } else {
                 make_return_code_msg(

src/plugin/callback_msg.rs

@@ -79,7 +79,7 @@ macro_rules! early_return_value {
         match $e {
             Err(e) => return make_return_code_msg(
                 errno::$code,
-                &format!("Failed to {} '{:?}'", format_args!($($arg)*), e),
+                &format!("Failed to {} '{}'", format_args!($($arg)*), e),
             ),
             Ok(v) => v,
         }