Fix rebase args variable name

Signed-off-by: Martin Necas <mnecas@redhat.com>

virt-v2v/pkg/customize/testdata/valid_config.yml

@@ -0,0 +1,56 @@
+<?xml version='1.0' encoding='utf-8'?>
+<domain type='kvm'>
+  <!-- generated by virt-v2v 2.5.6rhel=9,release=3.el9 -->
+  <name>yzamir-03</name>
+  <metadata>
+    <libosinfo:libosinfo xmlns:libosinfo='http://libosinfo.org/xmlns/libvirt/domain/1.0'>
+      <libosinfo:os id='http://redhat.com/rhel/8.2'/>
+    </libosinfo:libosinfo>
+  </metadata>
+  <memory unit='KiB'>2097152</memory>
+  <currentMemory unit='KiB'>2097152</currentMemory>
+  <vcpu>1</vcpu>
+  <cpu mode='host-model'/>
+  <features>
+    <acpi/>
+    <apic/>
+  </features>
+  <os>
+    <type arch='x86_64' machine='q35'>hvm</type>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <devices>
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='raw'/>
+      <source file='/var/tmp/v2v/yzamir-03-sda'/>
+      <target dev='vda' bus='virtio'/>
+    </disk>
+    <interface type='bridge'>
+      <source bridge='VM Network'/>
+      <model type='virtio'/>
+      <mac address='00:50:56:83:f9:7f'/>
+    </interface>
+    <video>
+      <model type='vga' vram='16384' heads='1'/>
+    </video>
+    <graphics type='vnc' autoport='yes'/>
+    <rng model='virtio'>
+      <backend model='random'>/dev/urandom</backend>
+    </rng>
+    <memballoon model='virtio'/>
+    <panic model='isa'>
+      <address type='isa' iobase='0x505'/>
+    </panic>
+    <vsock model='virtio'/>
+    <input type='tablet' bus='usb'/>
+    <input type='mouse' bus='ps2'/>
+    <console type='pty'/>
+    <controller type='virtio-serial' model='virtio'/>
+    <channel type='unix'>
+      <target type='virtio' name='org.qemu.guest_agent.0'/>
+    </channel>
+  </devices>
+</domain>