man: trafgen: Minor fixes

Replace "on default" by "by default", make it a bit more clear what the
seed in the -E/--seed option is for and mention exit after display of
information on --version and --help.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 2 insertions, 2 deletions

diff --git a/bpfc.8 b/bpfc.8
index 622014c..055c18c 100644
--- a/bpfc.8
+++ b/bpfc.8
@@ -73,10 +73,10 @@ Be more verbose and display some bpfc debugging information.
 Dump all supported instructions to stdout.
 
 .SS -v, --version
-Show versioning information.
+Show versioning information and exit.
 
 .SS -h, --help
-Show user help.
+Show user help and exit.
 
 .SH SYNTAX