[doc] client: a couple of minor improvements

doc/owlps-client.t2t

@@ -13,7 +13,7 @@ June 2013
 %!preproc(man): "(owlps-architecture)\.t2t" "**\1**(7)"
 %!preproc(man): "(owlps-deployment)\.t2t" "**\1**(7)"
 %!preproc(man): "(owlps-[^ ]*)\.t2t" "**\1**(1)"
-%!preproc(man): "(owlps-[^ ]*\.h)" "**\1**(3)"
+%!preproc(man): "(owlps[^ ]*\.h)" "**\1**(3)"
 %%%
 
 
@@ -21,7 +21,7 @@ June 2013
 
 = Synopsis =
 
-**owlps-client** [ **-v** | **-q** ] **-i** dest_ip [ **-p** //dest_port// ] [ **-I** //iface// ]
+**owlps-client** [ **-v** | **-q** ] **-i** //dest_ip// [ **-p** //dest_port// ] [ **-I** //iface// ]
              [ **-t** //delay// ] [ **-n** //nb_packets// ] [ **-s** //packet_size// ]
              [ **-F** [ //delay// ] [ **-N** //nb_requests// ] [ **-D** ] ] [ **-l** [ //port// ] ]
 
@@ -100,9 +100,9 @@ Where:
 = Options =
 
 : **-h**
-  Print help message.
+  Print help message and exit.
 : **-V**
-  Print version information.
+  Print version information and exit.
 : **-v**
   Turn on verbose mode (default).
 : **-q**
@@ -113,8 +113,8 @@ Where:
 : **-p** //dest_port//
   Destination port of the localisation request (default: 9900).
 : **-t** //delay//
-  Time between each packet transmission in milliseconds (default: 25 ms
-  for a normal request, 50 ms for a calibration request).
+  Time between two packet transmissions in milliseconds. The default is
+  25 ms for normal requests and 50 ms for calibration requests.
 : **-n** //nb_packets//
   Number of packet transmitted for the request (default: 10 for a normal
   request, 20 for a calibration request).
@@ -134,7 +134,7 @@ Where:
   With -F, stop after //nb_requests// requests transmitted instead of
   looping indefinitely.
 : **-D**
-  Daemon mode. Useful only in flood mode.
+  Daemon mode (fork to the background). Useful only in flood mode.
 : **-l** [ //port// ]
   Wait for the computed position and display it. The optional argument
   //port// allows to specify the listening port (default: 9910).