Removed deprected --config parameter

docs/COMMAND_LINE.MD

@@ -11,7 +11,6 @@
 --light-mode          Don't allocate RandomX dataset, saves 2GB of RAM
 --loglevel            Verbosity of the log, integer number between 0 and 6
 --data-dir            Path to store general p2pool files (log, cache, peer data, etc.), default is current directory
---config              Deprecated, will be removed in the next version. Use --sidechain-config instead
 --sidechain-config    Name of the p2pool sidechain parameters file (only use it if you run your own sidechain)
 --data-api            Path to the p2pool JSON data (use it in tandem with an external web-server). Not affected by --data-dir setting!
 --local-api           Enable /local/ path in api path for Stratum Server and built-in miner statistics

src/main.cpp

@@ -49,7 +49,6 @@ void p2pool_usage()
 		"--light-mode          Don't allocate RandomX dataset, saves 2GB of RAM\n"
 		"--loglevel            Verbosity of the log, integer number between 0 and %d\n"
 		"--data-dir            Path to store general p2pool files (log, cache, peer data, etc.), default is current directory\n"
-		"--config              Deprecated, will be removed in the next version. Use --sidechain-config instead\n"
 		"--sidechain-config    Name of the p2pool sidechain parameters file (only use it if you run your own sidechain)\n"
 		"--data-api            Path to the p2pool JSON data (use it in tandem with an external web-server). Not affected by --data-dir setting!\n"
 		"--local-api           Enable /local/ path in api path for Stratum Server and built-in miner statistics\n"

src/params.cpp

@@ -101,12 +101,6 @@ Params::Params(int argc, char* const argv[])
 			ok = true;
 		}
 
-		if ((strcmp(argv[i], "--config") == 0) && (i + 1 < argc)) {
-			LOGWARN(0, "--config command line parameter is deprecated and will be removed in the next version. Use --sidechain-config instead");
-			m_sidechainConfig = argv[++i];
-			ok = true;
-		}
-
 		if ((strcmp(argv[i], "--sidechain-config") == 0) && (i + 1 < argc)) {
 			m_sidechainConfig = argv[++i];
 			ok = true;
@@ -245,6 +239,9 @@ Params::Params(int argc, char* const argv[])
 		}
 
 		if (!ok) {
+			// Wait to avoid log messages overlapping with printf() calls and making a mess on screen
+			std::this_thread::sleep_for(std::chrono::milliseconds(10));
+
 			fprintf(stderr, "Unknown command line parameter %s\n\n", argv[i]);
 			p2pool_usage();
 			throw std::exception();