[PATCH 4/4] man: add -b option to e2image

[Artem Blagodarenko <artem.blagodarenko@gmail.com>]

From: Artem Blagodarenko <artem.blagodarenko@seagate.com>

Add manual page for e2image -b option.

Signed-off-by: Artem Blagodarenko <artem.blagodarenko@seagate.com>
---
 misc/e2image.8.in |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/misc/e2image.8.in b/misc/e2image.8.in
index f28a76e..61c23da 100644
--- a/misc/e2image.8.in
+++ b/misc/e2image.8.in
@@ -11,6 +11,10 @@ e2image \- Save critical ext2/ext3/ext4 filesystem metadata to a file
 .B \-r|Q
 ]
 [
+.B \-b
+.I superblock
+]
+[
 .B \-fr
 ]
 .I device
@@ -167,6 +171,12 @@ the
 option will prevent analysis of problems related to hash-tree indexed
 directories.
 .PP
+Option
+.B \-b
+.I superblock
+can be used to get image from partition with broken primary superblock.
+The partition is copied as is including broken primary superblock. 
+.PP
 Note that this will work even if you substitute "/dev/hda1" for another raw
 disk image, or QCOW2 image previously created by
 .BR e2image .
@@ -217,6 +227,11 @@ This can be useful to write a qcow2 image containing all data to a
 sparse image file where it can be loop mounted, or to a disk partition.
 Note that this may not work with qcow2 images not generated by e2image.
 .PP
+Option
+.B \-b
+.I superblock
+can be used same way as for raw images.
+.PP
 .SH INCLUDING DATA
 Normally
 .B e2image
-- 
1.7.1