options: set log-level and log-prefix early.

Otherwise we potentially miss debug-level logs.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

lightningd/log.c

@@ -520,11 +520,13 @@ char *arg_log_to_file(const char *arg, struct lightningd *ld)
 
 void opt_register_logging(struct lightningd *ld)
 {
-	opt_register_arg("--log-level", arg_log_level, show_log_level, ld->log,
-			 "log level (io, debug, info, unusual, broken)");
-	opt_register_arg("--log-prefix", arg_log_prefix, show_log_prefix,
-			 ld->log,
-			 "log prefix");
+	opt_register_early_arg("--log-level",
+			       arg_log_level, show_log_level, ld->log,
+			       "log level (io, debug, info, unusual, broken)");
+	opt_register_early_arg("--log-prefix", arg_log_prefix, show_log_prefix,
+			       ld->log,
+			       "log prefix");
+	/* We want this opened later, once we have moved to lightning dir */
 	opt_register_arg("--log-file=<file>", arg_log_to_file, NULL, ld,
 			 "log to file instead of stdout");
 }