libstdc++: Remove duplicate dg-do directive

Also add an effective target to clarify it should only run for C++17 and
later.

libstdc++-v3/ChangeLog:

	* testsuite/20_util/time_point_cast/rounding.cc: Remove
	duplicate dg-do directive and add c++17 effective target.

diff --git a/libstdc++-v3/testsuite/20_util/time_point_cast/rounding.cc b/libstdc++-v3/testsuite/20_util/time_point_cast/rounding.cc
index 7cf4931..9918b83 100644 (file)
--- a/libstdc++-v3/testsuite/20_util/time_point_cast/rounding.cc
+++ b/libstdc++-v3/testsuite/20_util/time_point_cast/rounding.cc
@@ -15,10 +15,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-do run { target c++11 } }
-
 // { dg-options "-std=gnu++17" }
-// { dg-do compile }
+// { dg-do compile { target c++17 } }
 
 #include <chrono>