Fix CPU usage with rigctlcom in sleep.c

Hopefully doesn't affect other things too much

src/sleep.c

@@ -62,7 +62,7 @@ int hl_usleep(rig_useconds_t usec)
     tv1.tv_sec = (time_t) delay;
     tv1.tv_nsec = (long)((delay - tv1.tv_sec) * 1e+9);
     tv2.tv_sec = 0;
-    tv2.tv_nsec = 10;
+    tv2.tv_nsec = 1000000;
 //    rig_debug(RIG_DEBUG_CACHE,"usec=%ld, sleep_time=%f, tv1=%ld,%ld\n", usec, sleep_time, (long)tv1.tv_sec,
 //           (long)tv1.tv_nsec);
 
@@ -194,7 +194,7 @@ int main()
     {
         char buf[256];
         time(&rawtime);
-        hl_usleep(1000000 * 1000); // test 1s sleep
+        hl_usleep(1000000); // test 1s sleep
         date_strget(buf, sizeof(buf), 0);
         printf("%s\n", buf);
         time(&rawtime);