Problem: wrong formatting in several files

Solution: apply clang-format

src/select.cpp

@@ -118,7 +118,7 @@ void zmq::select_t::trigger_events (const fd_entries_t &fd_entries_,
     //  Size is cached to avoid iteration through recently added descriptors.
     for (fd_entries_t::size_type i = 0, size = fd_entries_.size ();
          i < size && event_count_ > 0; ++i) {
-        //  fd_entries_[i] may not be stored, since calls to 
+        //  fd_entries_[i] may not be stored, since calls to
         //  in_event/out_event may reallocate the vector
 
         if (is_retired_fd (fd_entries_[i]))

src/tcp_connecter.hpp

@@ -108,7 +108,7 @@ class tcp_connecter_t : public own_t, public io_object_t
     //  Underlying socket.
     fd_t s;
 
-    //  Handle corresponding to the listening socket, if file descriptor is 
+    //  Handle corresponding to the listening socket, if file descriptor is
     //  registered with the poller, or NULL.
     handle_t handle;