systest_runnable.h: mark copy ctor as explicit

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>

diff --git a/src/test/system/systest_runnable.h b/src/test/system/systest_runnable.h
index 8fb59f4c68d37029df619468c3c6b2b006f344b0..2164fa78f9ce41fcdcf8dec33df78fed1c4bf440 100644 (file)
--- a/src/test/system/systest_runnable.h
+++ b/src/test/system/systest_runnable.h
@@ -70,7 +70,7 @@ protected:
   const char **m_argv;
 
 private:
-  SysTestRunnable(const SysTestRunnable &rhs);
+  explicit SysTestRunnable(const SysTestRunnable &rhs);
   SysTestRunnable& operator=(const SysTestRunnable &rhs);
   void update_id_str(bool started);
   void set_argv(int argc, const char **argv);