Fixed setting max log level from command line

src/console_commands.cpp

@@ -107,7 +107,7 @@ static int do_status(p2pool *m_pool, const char * /* args */)
 static int do_loglevel(p2pool * /* m_pool */, const char *args)
 {
 	int level = atoi(args);
-	level = std::min(std::max(level, 0), 6);
+	level = std::min(std::max(level, 0), log::MAX_GLOBAL_LOG_LEVEL);
 	log::GLOBAL_LOG_LEVEL = level;
 	LOGINFO(0, "log level set to " << level);
 	return 0;

src/log.h

@@ -22,6 +22,7 @@ namespace p2pool {
 namespace log {
 
 extern int GLOBAL_LOG_LEVEL;
+constexpr int MAX_GLOBAL_LOG_LEVEL = 6;
 
 enum class Severity {
 	Info,

src/params.cpp

@@ -56,7 +56,7 @@ Params::Params(int argc, char* argv[])
 		}
 
 		if ((strcmp(argv[i], "--loglevel") == 0) && (i + 1 < argc)) {
-			const int level = std::min(std::max(atoi(argv[++i]), 0), 5);
+			const int level = std::min(std::max(atoi(argv[++i]), 0), log::MAX_GLOBAL_LOG_LEVEL);
 			log::GLOBAL_LOG_LEVEL = level;
 		}