main/options: display level name, not numeric

Issue: 7389

Follow-up change for verbose handling. Instead of displaying the numeric
verbose level, display the level name.

I.e., instead of 4, display Debug

src/suricata.c

@@ -121,6 +121,7 @@
 #include "util-device-private.h"
 #include "util-dpdk.h"
 #include "util-ebpf.h"
+#include "util-enum.h"
 #include "util-exception-policy.h"
 #include "util-host-os-info.h"
 #include "util-hugepages.h"
@@ -3066,7 +3067,8 @@ void SuricataInit(void)
         SCLogInfo("Running suricata under test mode");
 
     if (suricata.verbose) {
-        SCLogInfo("Running with verbose level %d", suricata.verbose);
+        SCLogInfo(
+                "Running with verbose level %s", SCLogLevel2Name(suricata.verbose + SC_LOG_NOTICE));
     }
 
     if (ParseInterfacesList(suricata.aux_run_mode, suricata.pcap_dev) != TM_ECODE_OK) {

src/util-debug.c

@@ -1068,6 +1068,11 @@ static inline void SCLogSetLogLevel(SCLogInitData *sc_lid, SCLogConfig *sc_lc)
     sc_log_global_log_level = sc_lc->log_level;
 }
 
+const char *SCLogLevel2Name(const SCLogLevel lvl)
+{
+    return SCMapEnumValueToName(lvl, sc_log_level_map);
+}
+
 SCLogLevel SCLogGetLogLevel(void)
 {
     return sc_log_global_log_level;

src/util-debug.h

@@ -25,6 +25,7 @@
 #define SURICATA_UTIL_DEBUG_H
 
 #include "util-error.h"
+#include "util-enum.h"
 
 /**
  * \brief The various log levels
@@ -44,6 +45,8 @@ typedef enum {
     SC_LOG_LEVEL_MAX,
 } SCLogLevel;
 
+extern const char *SCLogLevel2Name(const SCLogLevel lvl);
+
 SCError SCLogMessage(const SCLogLevel, const char *, const unsigned int, const char *, const char *,
         const char *message);