MFC r272485: Fill cyclinder, head and sector fields for the EBR,
MBR and PC98 schemes.

Requested by: gjb

MFC 271881: Fix partition alignment and image rounding when any of
-P (block size), -T (track size) or -H (number of heads) is given.

Approved by: re@ (gjb)

MFC r268236,268264,268524,268646,268802,269021:
This brings VHD support to mkimg(1); both dynamic and fixed file formats.
Dynamic VHD and VMDK file images are now sparsely written, meaning that
"free" sectors do not occupy space.

Relnotes: yes

MFC mkimg(1) -- revisions 268159, 268134, 266556, 266514, 266513,
266512, 266511, 266510, 266509, 266176, 265468, 265467,
265462, 265170, 263926, 263924, 263923, 263919 and 263918.

Revision 267182 changed mkimg.1 alongside other unrelated manpages.
The change to mkimg.1 has been applied without registering a merge
of the revision. This allows a future merge of r267182 to happen.

Relnotes: yes

MFC r272485: Fill cyclinder, head and sector fields for the EBR,
MBR and PC98 schemes.

Requested by: gjb

MFC 271881: Fix partition alignment and image rounding when any of
-P (block size), -T (track size) or -H (number of heads) is given.

Approved by: re@ (gjb)

MFC r268236,268264,268524,268646,268802,269021:
This brings VHD support to mkimg(1); both dynamic and fixed file formats.
Dynamic VHD and VMDK file images are now sparsely written, meaning that
"free" sectors do not occupy space.

Relnotes: yes

MFC mkimg(1) -- revisions 268159, 268134, 266556, 266514, 266513,
266512, 266511, 266510, 266509, 266176, 265468, 265467,
265462, 265170, 263926, 263924, 263923, 263919 and 263918.

Revision 267182 changed mkimg.1 alongside other unrelated manpages.
The change to mkimg.1 has been applied without registering a merge
of the revision. This allows a future merge of r267182 to happen.

Relnotes: yes