timestamp formatting: always use 64-bit for timesstamp formatting.

Using C99 `unsigned long long` to format `struct timeval`'s `tv_sec`
and `tv_usec`, fix incorrect print under some 32bit platform which
 using time64.

canlogserver.c

@@ -415,8 +415,8 @@ int main(int argc, char **argv)
 
 				idx = idx2dindex(addr.can_ifindex, s[i]);
 
-				sprintf(temp, "(%lu.%06lu) %*s ",
-					tv.tv_sec, tv.tv_usec, max_devname_len, devname[idx]);
+				sprintf(temp, "(%llu.%06llu) %*s ",
+					(unsigned long long)tv.tv_sec, (unsigned long long)tv.tv_usec, max_devname_len, devname[idx]);
 				sprint_canframe(temp+strlen(temp), &frame, 0, maxdlen); 
 				strcat(temp, "\n");