Amend the documentation about the use of the -C -G and -W switches.
When using all three switches (-C -G and -W), the behavior is
practically identical to only using -C and -G, as the -W flag will only
affect the filename suffix.
Fixes #695
diff --git a/tcpdump.1.in b/tcpdump.1.in
index d11424e..984c196 100644
--- a/tcpdump.1.in
+++ b/tcpdump.1.in
@@ -361,6 +361,9 @@
which should include a time format as defined by
.BR strftime (3).
If no time format is specified, each new file will overwrite the previous.
+Whenever a generated filename is not unique, tcpdump will overwrite the
+preexisting data; providing a time specification that is coarser than the
+capture period is therefore not advised.
.IP
If used in conjunction with the
.B \-C
@@ -801,9 +804,15 @@
Used in conjunction with the
.B \-G
option, this will limit the number of rotated dump files that get
-created, exiting with status 0 when reaching the limit. If used with
+created, exiting with status 0 when reaching the limit.
+.IP
+If used in conjunction with both
.B \-C
-as well, the behavior will result in cyclical files per timeslice.
+and
+.B \-G,
+the
+.B \-W
+option will currently be ignored, and will only affect the file name.
.TP
.B \-x
When parsing and printing,
