Print exit message only in verbose mode

Update the exit message printing in all the modules:
- print on standard error
- print only in verbose mode
- use "exiting" instead of "end"

owlps-aggregator/owlps-aggregatord.c

@@ -166,6 +166,11 @@ int main(int argc, char **argv)
 
   /* Last cleaning tasks */
  exit:
+  /* If called with -h, cfg won't be initialised, so we must check if
+   * cfg is NULL */
+  if (cfg && VERBOSE_CHATTERBOX)
+    fprintf(stderr, "%s: exiting.\n", program_name) ;
+
   if (sockfd >= 0)
     close(sockfd) ; // Close socket
   free_request_list() ;
@@ -175,7 +180,6 @@ int main(int argc, char **argv)
   sem_destroy(&lock_requests) ;
   sem_destroy(&lock_aps) ;
 
-  fprintf(stderr, "%s: end.\n", program_name) ;
   return ret ;
 }
 

owlps-listener/owlps-listenerd.c

@@ -275,11 +275,19 @@ int main(int argc, char *argv[])
 
   /* Last cleaning tasks */
  exit:
+#ifdef OWLPS_LISTENER_USES_CONFIG_FILE
+  /* If called with -h, cfg won't be initialised, so we must check if
+   * cfg is NULL */
+  if (cfg && VERBOSE_CHATTERBOX)
+#else // OWLPS_LISTENER_USES_CONFIG_FILE
+  if (VERBOSE_CHATTERBOX)
+#endif // OWLPS_LISTENER_USES_CONFIG_FILE
+    fprintf(stderr, "%s: exiting.\n", program_name) ;
+
 #ifdef OWLPS_LISTENER_USES_CONFIG_FILE
   cfg_free(cfg) ; // Clean configuration
 #endif // OWLPS_LISTENER_USES_CONFIG_FILE
 
-  printf("%s: end.\n", program_name) ;
   return ret ;
 }
 

owlps-positioner/src/owlps-positionerd.cc

@@ -18,6 +18,7 @@
 
 
 #include "userinterface.hh"
+#include "configuration.hh"
 #include "inputdatareader.hh"
 #include "stock.hh"
 #include "positioning.hh"
@@ -59,6 +60,8 @@ int main(int argc, char **argv)
       Stock::clear() ;
     }
 
-  cerr << argv[0] << ": end." << endl ;
+  if (Configuration::is_configured("verbose"))
+    cerr << argv[0] << ": exiting." << endl ;
+
   return 0 ;
 }

owlps-udp-to-http/owlps-udp-to-http.c

@@ -158,7 +158,9 @@ int main(int argc, char *argv[])
   free_results_list() ;
   sem_destroy(&lock_results) ;
 
-  printf("%s: end.\n", program_name) ;
+  if (verbose)
+    fprintf(stderr, "%s: exiting.\n", program_name) ;
+
   return ret ;
 }