add usage output

add-usage-output.patch

@@ -0,0 +1,34 @@
+From 5e1dbdb12f32d2c89373f91c764b396b4316690b Mon Sep 17 00:00:00 2001
+From: lingsheng <lingsheng@huawei.com>
+Date: Thu, 30 Sep 2021 11:33:52 +0800
+Subject: [PATCH] add usage output
+
+---
+ src/conf.c | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/src/conf.c b/src/conf.c
+index 9d31ad9..ed989d5 100644
+--- a/src/conf.c
++++ b/src/conf.c
+@@ -358,12 +358,12 @@ static void print_usage(void)
+ 	printf("mosquitto version %s\n\n", VERSION);
+ 	printf("mosquitto is an MQTT v5.0/v3.1.1/v3.1 broker.\n\n");
+ 	printf("Usage: mosquitto [-c config_file] [-d] [-h] [-p port]\n\n");
+-	printf(" -c : specify the broker config file.\n");
+-	printf(" -d : put the broker into the background after starting.\n");
+-	printf(" -h : display this help.\n");
+-	printf(" -p : start the broker listening on the specified port.\n");
++	printf(" -c, --config-file : specify the broker config file.\n");
++	printf(" -d, --daemon : put the broker into the background after starting.\n");
++	printf(" -h, --help : display this help.\n");
++	printf(" -p, --port : start the broker listening on the specified port.\n");
+ 	printf("      Not recommended in conjunction with the -c option.\n");
+-	printf(" -v : verbose mode - enable all logging types. This overrides\n");
++	printf(" -v, --verbose : verbose mode - enable all logging types. This overrides\n");
+ 	printf("      any logging options given in the config file.\n");
+ 	printf("\nSee https://mosquitto.org/ for more information.\n\n");
+ }
+-- 
+2.23.0
+

mosquitto.spec

@@ -1,10 +1,11 @@
 Name:                mosquitto
 Version:             1.6.15
-Release:             2
+Release:             3
 Summary:             Open Source MQTT v3.1/v3.1.1 Broker
 License:             BSD
 URL:                 http://mosquitto.org/
 Source0:             http://mosquitto.org/files/source/%{name}-%{version}.tar.gz
+Patch0001:           add-usage-output.patch
 BuildRequires:       c-ares-devel gcc-c++ libuuid-devel libwebsockets-devel openssl-devel
 BuildRequires:       systemd-devel
 BuildRequires:       make
@@ -88,6 +89,9 @@ exit 0
 %{_mandir}/man3/*.3.*
 
 %changelog
+* Thu Sep 30 2021 lingsheng <lingsheng@huawei.com> - 1.6.15-3
+- add usage output
+
 * Tue Sep 24 2021 zhengyaohui <zhengyaohui1@huawei.com> - 1.6.15-2
 - add buildrequires make