(root)/
util-linux-2.39/
tests/
expected/
sfdisk/
resize-dos-6-enlarge-relative
, +10M

Disk <removed>: 100 MiB, 104857600 bytes, 204800 sectors
Disk model: scsi_debug      
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / <removed> bytes
Disklabel type: dos
Disk identifier: <removed>

Old situation:

Device     Boot Start   End Sectors Size Id Type
<removed>1        2048 12287   10240   5M 83 Linux

<removed>1: 
New situation:
Disklabel type: dos
Disk identifier: <removed>

Device     Boot Start   End Sectors Size Id Type
<removed>1        2048 32767   30720  15M 83 Linux

The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.