[libvirt] Remove OPTION section in output of 'virsh help command' if no option exists.

Don't print 'OPTION' if there's no options. Just behaves as DESCRIPTION does. This mostly affects 'interface' command group. Signed-off-by: Zhang Xiaohe <zhangxh(a)cn.fujitsu.com&gt; Reported-by: Li Yang <liyang.fnst(a)cn.fujitsu.com&gt; --- tools/virsh.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/tools/virsh.c b/tools/virsh.c index ecb7bd4..7c60800 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -1270,7 +1270,9 @@ vshCmddefHelp(vshControl *ctl, const char *cmdname) if (def->opts) { const vshCmdOptDef *opt; - fputs(_("\n OPTIONS\n"), stdout); + /* Print the option only if there are options */ + if (def->opts->name) + fputs(_("\n OPTIONS\n"), stdout); for (opt = def->opts; opt->name; opt++) { switch (opt->type) { case VSH_OT_BOOL: -- 1.7.1