No need for "struct nstime_t", "nstime_t" by itself suffices.

(That should also keep people from deciding that they don't want to
include <wsutil/nstime.h>, but still want to use Wireshark nanosecond
times, and do so by sticking a private incomplete definition of "struct
nstime_t" into the code.)

Change-Id: I94e863fe7083ebba254c3a718b85088a89fb6b7d
Reviewed-on: https://code.wireshark.org/review/13022
Reviewed-by: Guy Harris <guy@alum.mit.edu>

wsutil/nstime.h

@@ -36,7 +36,7 @@ extern "C" {
  */
 
 /** data structure to hold time values with nanosecond resolution*/
-typedef struct nstime_t {
+typedef struct {
 	time_t	secs;
 	int	nsecs;
 } nstime_t;