lscgroup: more verbose output of -h option

The patch create more verbose help output of lscgroup command

Signed-off-by: Ivana Hutarova Varekova <varekova@redhat.com>
Signed-off-by: Jan Safranek <jsafrane@redhat.com>

diff --git a/src/tools/lscgroup.c b/src/tools/lscgroup.c
index e6b1d09eba849aaf9374813c3f8209be9dc8feba..0b3e502f9b2436312196fb53e9013549f553bbb4 100644 (file)
--- a/src/tools/lscgroup.c
+++ b/src/tools/lscgroup.c
@@ -45,9 +45,13 @@ static void usage(int status, const char *program_name)
                        " try %s -h' for more information.\n",
                        program_name);
        } else {
-               fprintf(stdout, "Usage: %s [<controllers>:<path>] [...]\n",
-                       program_name);
-               fprintf(stdout, "list all cgroups\n");
+               fprintf(stdout, "Usage: %s [-h] [[-g] <controllers>:<path>] "\
+                       "[...]\n", program_name);
+               fprintf(stdout, "  -g <controllers>:<path>   Control group "\
+                       "to be displayed (-g is optional)\n");
+               fprintf(stdout, "  -h, --help                Display "\
+                       "this help\n");
+               fprintf(stdout, "List all cgroups\n");
        }
 }