+++ This bug was initially created as a clone of Bug #1437601 +++

Description of problem:
        ALERT:
        The partition name must be 'EFI System Partition'.


Version-Release number of selected component (if applicable):
livecd-tools-24.2-1.fc26.x86_64

How reproducible:
Always

Steps to Reproduce:
1.Disk /dev/sdc: 14.7 GiB, 15812526080 bytes, 30883840 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 906DE484-2584-412F-9F3A-0C7919CA2B3F

Device     Start      End  Sectors  Size Type
/dev/sdc1   8192 30879743 30871552 14.7G EFI System

2./usr/bin/livecd-iso-to-disk --efi --format --noverify --reset-mbr ~jamundson/Downloads/Fedora-LXQt-Live-x86_64-26-20170328.n.0.iso /dev/sdc1
3.

Actual results:
/usr/bin/livecd-iso-to-disk: line 492: : command not found

    WARNING: This will DESTROY All DATA on: /dev/sdc !!

        Press Enter to continue, or Ctrl C to abort.

/dev/sdc: 8 bytes were erased at offset 0x00000200 (gpt): 45 46 49 20 50 41 52 54
/dev/sdc: 8 bytes were erased at offset 0x3ae7ffe00 (gpt): 45 46 49 20 50 41 52 54
/dev/sdc: 2 bytes were erased at offset 0x000001fe (PMBR): 55 aa
/dev/sdc: calling ioctl to re-read partition table: Success
Waiting for devices to settle...
mkfs.fat 4.1 (2017-01-24)

        ALERT:
        The partition name must be 'EFI System Partition'.

        This can be set with a partition editor, such as parted,
        or you can run livecd-iso-to-disk with the --reset-mbr option.

Expected results:
Correctly written USB drive.

Additional info:
Also happened on Fedora 25 before system-upgrade.

--- Additional comment from Jerry Amundson on 2017-03-30 13:20:03 EDT ---

A quick glance tells me line 408, or something before it, is wrong -
    p=${p##$device}
sets p and partnum to empty strings.