wiki: Use --format=ustar for creating Odin tars

Change-Id: I37a074c87190e3ba55596f22e7c507d3b8cc8737

_includes/templates/device_specific/before_recovery_install_samsung_qcom.md

@@ -8,7 +8,7 @@
     * From within the Developer options menu, enable OEM unlock.
 {% endunless %}
 3. Download `vbmeta.img` from [here](https://download.lineageos.org/devices/{{ device.codename }}).
-4. Open a Command Prompt in the folder where the file was downloaded and TAR the file by running `tar -cvf vbmeta.tar vbmeta.img`
+4. Open a Command Prompt in the folder where the file was downloaded and TAR the file by running `tar --format=ustar -cvf vbmeta.tar vbmeta.img`
 5. Power off the device, and boot it into download mode:
     * {{ device.download_boot }}
     * Now, click the button that the onscreen instructions correlate to "Device unlock mode" and/or "Unlock Bootloader".

_includes/templates/recovery_install_odin.md

@@ -40,7 +40,7 @@ The preferred method of installing a custom recovery is through Download Mode{%
 {%- elsif device.maintainers != empty %}
 {%- assign is_lineage_recovery = true %}
 2. Download [Lineage Recovery](https://download.lineageos.org/devices/{{ custom_recovery_codename }}). Simply download the latest recovery file, named `{{ device.recovery_partition_name }}.img`
-3. Open a Command Prompt in the folder where the file was downloaded, and TAR the file by running `tar -cvf {{ device.recovery_partition_name }}.tar {{ device.recovery_partition_name }}.img`.
+3. Open a Command Prompt in the folder where the file was downloaded, and TAR the file by running `tar --format=ustar -cvf {{ device.recovery_partition_name }}.tar {{ device.recovery_partition_name }}.img`.
     {% capture content -%}
     Make sure to not accidentally name the file `{{ device.recovery_partition_name }}.img.img` when file name extensions are hidden.
     {%- endcapture -%}
@@ -49,7 +49,7 @@ The preferred method of installing a custom recovery is through Download Mode{%
 {%- else %}
 {%- assign is_lineage_recovery = true %}
 2. [Build]({{ device | device_link: "/build" | relative_url }}) a LineageOS installation package. The recovery will be built as part of it!
-3. Locate the built `{{ device.recovery_partition_name }}.img` file, open a Command Prompt in the folder where the file was found, and TAR the file by running `tar -cvf {{ device.recovery_partition_name }}.tar {{ device.recovery_partition_name }}.img`.
+3. Locate the built `{{ device.recovery_partition_name }}.img` file, open a Command Prompt in the folder where the file was found, and TAR the file by running `tar --format=ustar -cvf {{ device.recovery_partition_name }}.tar {{ device.recovery_partition_name }}.img`.
     {% include alerts/tip.html content="You can open a command prompt in any folder by right-clicking on empty space while holding Shift and selecting \"Open Command Prompt here\" or \"Open PowerShell window here\" from the context menu." %}
 {%- endif %}
     {% include alerts/important.html content="Other recoveries may not work for installation or updates. We strongly recommend to use the one linked above!" %}