cgdelete: do -h output more verbose

The patch creates more verbose help output

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

diff --git a/src/tools/cgdelete.c b/src/tools/cgdelete.c
index c7b47212392015ff61bdaa4443e0800f24373d52..e84cd2df20e6832f90141c4ad1425efa665044fb 100644 (file)
--- a/src/tools/cgdelete.c
+++ b/src/tools/cgdelete.c
@@ -40,9 +40,15 @@ static void usage(int status, const char *program_name)
                        " try %s --help' for more information.\n",
                        program_name);
        else {
-               printf("Usage: %s [-h ] [-r ] "
-                       "\[[-g] <controllers>:<path>] ...\n",
-                       program_name);
+               fprintf(stdout, "Usage: %s [-h] [-r] "\
+                       "[[-g] <controllers>:<path>] ...\n", program_name);
+               fprintf(stdout, "Remove control group(s)\n");
+               fprintf(stdout, "  -g <controllers>:<path>   "\
+                       "Control group to be removed (-g is optional)\n");
+               fprintf(stdout, "  -h, --help                "\
+                       "Display this help\n");
+               fprintf(stdout, "  -r, --recursive           "\
+                       "Recursively remove all subgroups\n");
        }
 }