btrfs-progs: update man page for btrfs-show-super
Add '-f' option for btrfs-show-super manpage, This option implies that sys chunk array and backup roots info will show up. Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz>
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@ -20,8 +20,13 @@ Mainly used for debug purpose.
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OPTIONS
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-f::
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Print full superblock information.
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Including the system chunk array and backup roots.
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-a::
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Print all the superblock information.
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Print information of all superblocks.
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+
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If this option is given, '-i' option will be ignored.
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