Uninitialized value in batch mode when /lib/firmware/intel-ucode not present

[evgkrsk]

root@thinkpad ~ #needrestart -wrl
Scanning processor microcode...                                                                                                                                                                

Failed to check for processor microcode upgrades.
root@thinkpad ~ #needrestart -wbrl
NEEDRESTART-VER: 3.0
NEEDRESTART-UCSTA: 0
NEEDRESTART-UCCUR: 0x00020655
Use of uninitialized value $ucode_vars{"AVAIL"} in concatenation (.) or string at /usr/sbin/needrestart line 867.
NEEDRESTART-UCEXP:
root@thinkpad ~ #/usr/lib/needrestart/iucode-scan-versions 1
+ IUCODE_TOOL_EXTRA_OPTIONS=
+ test -r /etc/default/intel-microcode
+ test '' = no
+ '[' -r '/usr/share/misc/intel-microcode*' ']'
+ exec iucode_tool -Sl -tb /lib/firmware/intel-ucode
iucode_tool: system has processor(s) with signature 0x00020655
iucode_tool: /lib/firmware/intel-ucode: cannot open: No such file or directory
[1]    31124 exit 2     /usr/lib/needrestart/iucode-scan-versions 1

NR builded from git tag v3.0