Testing failed CI test for MacOS

Author: sadko4u

src/test/utest/ipc/shmutex.cpp

@@ -42,7 +42,10 @@ UTEST_BEGIN("runtime.ipc", shmutex)
 
             data.append_ascii(event);
             data.append('=');
-            data.append_ascii((code == expected) ? "true" : "false");
+            if (code == expected)
+                data.append_ascii("true");
+            else
+                data.fmt_append_ascii("false(code=%d)", int(code));
             data.append(';');
         }
     } context_t;