suricata: don't display msg in list-keyword mode.

In list-keywords and list-app-layer mode, suricata now only
displays the messages linked with the feature. This allow users
to redirect the output and easily work on it. For exemple, the
csv output will be easily imported into a spreadsheet.

src/suricata.c

@@ -1209,13 +1209,15 @@ int main(int argc, char **argv)
         }
     }
 
+    if (!list_keywords && !list_app_layer_protocols) {
 #ifdef REVISION
-    SCLogInfo("This is %s version %s (rev %s)", PROG_NAME, PROG_VER, xstr(REVISION));
+        SCLogInfo("This is %s version %s (rev %s)", PROG_NAME, PROG_VER, xstr(REVISION));
 #elif defined RELEASE
-    SCLogInfo("This is %s version %s RELEASE", PROG_NAME, PROG_VER);
+        SCLogInfo("This is %s version %s RELEASE", PROG_NAME, PROG_VER);
 #else
-    SCLogInfo("This is %s version %s", PROG_NAME, PROG_VER);
+        SCLogInfo("This is %s version %s", PROG_NAME, PROG_VER);
 #endif
+    }
 
 #ifndef HAVE_HTP_TX_GET_RESPONSE_HEADERS_RAW
     SCLogWarning(SC_WARN_OUTDATED_LIBHTP, "libhtp < 0.2.7 detected. Keyword "
@@ -1224,7 +1226,8 @@ int main(int argc, char **argv)
 
     SetBpfString(optind, argv);
 
-    UtilCpuPrintSummary();
+    if (!list_keywords && !list_app_layer_protocols)
+        UtilCpuPrintSummary();
 
 #ifdef __SC_CUDA_SUPPORT__
     /* Init the CUDA environment */
@@ -1388,7 +1391,8 @@ int main(int argc, char **argv)
 
     /* Load the Host-OS lookup. */
     SCHInfoLoadFromConfig();
-    DefragInit();
+    if (!list_keywords && !list_app_layer_protocols)
+        DefragInit();
 
     if (run_mode == RUNMODE_UNKNOWN) {
         if (!engine_analysis && !list_keywords && !conf_test) {