avoid to use 0 instead of NULL

diff --git a/src/server/server.c b/src/server/server.c
index 5862586..15c622e 100644 (file)
--- a/src/server/server.c
+++ b/src/server/server.c
@@ -64,15 +64,15 @@ static const int DEFAULT_PORT = 3131;
 "Page not found - Go to <a href='/'>Main page</a></p></body>"))
 
 static struct option long_options[] = {
-       {"version", no_argument, 0, 'v'},
-       {"help", no_argument, 0, 'h'},
-       {"port", required_argument, 0, 'p'},
-       {"wdir", required_argument, 0, 'w'},
-       {"debug", required_argument, 0, 'd'},
-       {"log-file", required_argument, 0, 'l'},
-       {"sensor-log-file", required_argument, 0, 0},
-       {"sensor-log-interval", required_argument, 0, 0},
-       {0, 0, 0, 0}
+       {"version", no_argument, NULL, 'v'},
+       {"help", no_argument, NULL, 'h'},
+       {"port", required_argument, NULL, 'p'},
+       {"wdir", required_argument, NULL, 'w'},
+       {"debug", required_argument, NULL, 'd'},
+       {"log-file", required_argument, NULL, 'l'},
+       {"sensor-log-file", required_argument, NULL, 0},
+       {"sensor-log-interval", required_argument, NULL, 0},
+       {NULL, 0, NULL, 0}
 };
 
 static struct server_data server_data;