[XM] Fix 'xm help' when called on a command-name prefix.

Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>

diff --git a/tools/python/xen/xm/main.py b/tools/python/xen/xm/main.py
index a639d4d993ac86acbc75152731cee30b7c2393f9..f4773e7fb5fd32fc5648c11100893260906045f2 100644 (file)
--- a/tools/python/xen/xm/main.py
+++ b/tools/python/xen/xm/main.py
@@ -310,6 +310,11 @@ all_commands = (domain_commands + host_commands + scheduler_commands +
 def cmdHelp(cmd):
     """Print help for a specific subcommand."""
     
+    for fc in SUBCOMMAND_HELP.keys():
+        if fc[:len(cmd)] == cmd:
+            cmd = fc
+            break
+    
     try:
         args, desc = SUBCOMMAND_HELP[cmd]
     except KeyError: