armbianmonitor -u show syntax error on ODroid-N2 with armbian buster

[iav]

Being asked to run armbianmonitor -u on my ODroid-N2 I got syntax errors:

armbianmonitor -u
System diagnosis information will now be uploaded to /usr/bin/armbianmonitor: line 388: read: read error: 0: Invalid argument
/usr/bin/armbianmonitor: line 389: [: -ge: unary operator expected
/usr/bin/armbianmonitor: line 388: read: read error: 0: Invalid argument
/usr/bin/armbianmonitor: line 389: [: -ge: unary operator expected
.....
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