format update

Change-Id: I8e15451d7229cad5fb4c6d5cf7464fcde9d6c56c
diff --git a/tests/identity-management-fixture.hpp b/tests/identity-management-fixture.hpp
index 063c7ae..f0125a5 100644
--- a/tests/identity-management-fixture.hpp
+++ b/tests/identity-management-fixture.hpp
@@ -64,8 +64,8 @@
 
   /**
    *  @brief Save identity certificate to a file
-   *  @param identity identity
-   *  @param filename file name, should be writable
+   *  @p identity identity
+   *  @p filename file name, should be writable
    *  @return whether successful
    */
   bool