Admin space: change prefix to '@mqtt/'

Author: JEnoch

zenoh-plugin-mqtt/src/lib.rs

@@ -52,7 +52,7 @@ macro_rules! ke_for_sure {
 }
 
 lazy_static::lazy_static! {
-    static ref KE_PREFIX_ADMIN_SPACE: &'static keyexpr = ke_for_sure!("@/service");
+    static ref KE_PREFIX_ADMIN_SPACE: &'static keyexpr = ke_for_sure!("@mqtt");
     static ref ADMIN_SPACE_KE_VERSION: &'static keyexpr = ke_for_sure!("version");
     static ref ADMIN_SPACE_KE_CONFIG: &'static keyexpr = ke_for_sure!("config");
 }
@@ -134,8 +134,7 @@ async fn run(
     };
 
     // declare admin space queryable
-    let admin_keyexpr_prefix =
-        *KE_PREFIX_ADMIN_SPACE / &zsession.zid().into_keyexpr() / ke_for_sure!("mqtt");
+    let admin_keyexpr_prefix = *KE_PREFIX_ADMIN_SPACE / &zsession.zid().into_keyexpr();
     let admin_keyexpr_expr = (&admin_keyexpr_prefix) / ke_for_sure!("**");
     tracing::debug!("Declare admin space on {}", admin_keyexpr_expr);
     let config2 = config.clone();