key_value_store/kv_flat_btree_async: add using namespace std

Not worth annotating the specific elements of std used.

Signed-off-by: Samuel Just <sjust@redhat.com>

diff --git a/src/key_value_store/kv_flat_btree_async.cc b/src/key_value_store/kv_flat_btree_async.cc
index 6c2fd0ef796c4e9963bffa62c48e9784e5db3e80..19c388cf0dcd48ca379f7a3dc775e283f3bd7c85 100644 (file)
--- a/src/key_value_store/kv_flat_btree_async.cc
+++ b/src/key_value_store/kv_flat_btree_async.cc
@@ -31,10 +31,7 @@
 #include <iterator>
 
 using ceph::bufferlist;
-using std::cout;
-using std::vector;
-using std::cerr;
-using std::stringstream;
+using namespace std;
 
 bool index_data::is_timed_out(utime_t now, utime_t timeout) const {
   return prefix != "" && now - ts > timeout;