msg: Build target 'common' without using namespace in headers

Part of a changeset to allow building all of 'common' without relying
on 'using namespace std' or 'using namespace ceph' at toplevel in
headers.

Signed-off-by: Adam C. Emerson <aemerson@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/msg/async/EventSelect.h b/src/msg/async/EventSelect.h
index 1b75da0b1b0..08af57bcfd2 100644
--- a/src/msg/async/EventSelect.h
+++ b/src/msg/async/EventSelect.h
@@ -35,7 +35,7 @@ class SelectDriver : public EventDriver {
   int add_event(int fd, int cur_mask, int add_mask) override;
   int del_event(int fd, int cur_mask, int del_mask) override;
   int resize_events(int newsize) override;
-  int event_wait(vector<FiredFileEvent> &fired_events,
+  int event_wait(std::vector<FiredFileEvent> &fired_events,
 		 struct timeval *tp) override;
 };