[PATCH] Fix sys command to display its help information correctly

[Lianbo Jiang <lijiang@xxxxxxxxxx>]

Sometimes, the sys command may be misused, but it doesn't display
the expected help information, for example:

Without the patch:
crash> sys kmem
NAME
  kmem - kernel memory
SYNOPSIS
  kmem [-f|-F|-c|-C|-i|-v|-V|-n|-z|-o|-h] [-p | -m member[,member]]
       [[-s|-S|-S=cpu[s]|-r] [slab] [-I slab[,slab]]] [-g [flags]] [[-P] address]]
...
crash> sys abc
crash>

With the patch:
crash> sys kmem
Usage:
  sys [-c [name|number]] [-t] [-i] config
Enter "help sys" for details.
crash> sys abc
Usage:
  sys [-c [name|number]] [-t] [-i] config
Enter "help sys" for details.

Signed-off-by: Lianbo Jiang <lijiang@xxxxxxxxxx>
---
 kernel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel.c b/kernel.c
index 9c4aabffe580..1c6344735299 100644
--- a/kernel.c
+++ b/kernel.c
@@ -5476,7 +5476,7 @@ cmd_sys(void)
 		else if (STREQ(args[optind], "config"))
 			read_in_kernel_config(IKCFG_READ);
                 else
-                        cmd_usage(args[optind], COMPLETE_HELP);
+                        cmd_usage(pc->curcmd, SYNOPSIS);
                 optind++;
         } while (args[optind]);
 }
-- 
2.20.1

--
Crash-utility mailing list
Crash-utility@xxxxxxxxxx
https://listman.redhat.com/mailman/listinfo/crash-utility