tracing: Use double-dash spelling for trace option
commitdb817b8c500a60873eba80cbf047900ae5b32766
authorYaowei Bai <baiyaowei@cmss.chinamobile.com>
Wed, 4 Jul 2018 03:17:27 +0000 (4 11:17 +0800)
committerStefan Hajnoczi <stefanha@redhat.com>
Thu, 19 Jul 2018 12:09:04 +0000 (19 13:09 +0100)
tree65b34642bbcb8a848474c2c2a2d9dcb2ab3a08e0
parentea6abffa8a08d832feb759d359d5b935e3087cf7
tracing: Use double-dash spelling for trace option

The '-trace' and '--trace' spellings are only both supported in qemu
binary, while for qemu-nbd or qemu-img only '--trace' spelling is
supported. So for the consistency of trace option invocation, we
should use double-dash spelling in our documentation.

This's also mentioned in
https://wiki.qemu.org/BiteSizedTasks#Consistent_option_usage_in_documentation
.

Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1530674247-31200-1-git-send-email-baiyaowei@cmss.chinamobile.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
docs/devel/tracing.txt
trace/control.c
trace/control.h