man page: Update the -ttt and -ttttt options sections

The delta is printed with microsecond or nanosecond resolution depending
on the --time-stamp-precision option (default is microsecond resolution).

diff --git a/tcpdump.1.in b/tcpdump.1.in
index 6d8730685ccc373ea68e7b066060f479d7ff6434..d11424ed968fc3cceff9fffc4f7809909063e8eb 100644 (file)
--- a/tcpdump.1.in
+++ b/tcpdump.1.in
@@ -684,16 +684,20 @@ Print the timestamp, as seconds since January 1, 1970, 00:00:00, UTC, and
 fractions of a second since that time, on each dump line.
 .TP
 .B \-ttt
-Print a delta (micro-second resolution) between current and previous line
-on each dump line.
+Print a delta (microsecond or nanosecond resolution depending on the
+.B \-\-time\-stamp-precision
+option) between current and previous line on each dump line.
+The default is microsecond resolution.
 .TP
 .B \-tttt
 Print a timestamp, as hours, minutes, seconds, and fractions of a second
 since midnight, preceded by the date, on each dump line.
 .TP
 .B \-ttttt
-Print a delta (micro-second resolution) between current and first line
-on each dump line.
+Print a delta (microsecond or nanosecond resolution depending on the
+.B \-\-time\-stamp-precision
+option) between current and first line on each dump line.
+The default is microsecond resolution.
 .TP
 .B \-u
 Print undecoded NFS handles.