Use of uninitialized value $ENV{"HOME"} on Alma Linux 9

[SMillerDev]

Describe the bug

Running the check through Icinga on Alma Linux 9, the output contains an issue:

Use of uninitialized value $ENV{"HOME"} in concatenation (.) or string at /usr/lib64/nagios/plugins/check_updates line 1108.
CHECK_UPDATES CRITICAL - 1 security update and 1 non-security update available 
c-ares.x86_64 (security)
telegraf.x86_64

To Reproduce

Have a user without a $HOME set and run the plugin

Expected behavior Output without the error, such as:

CHECK_UPDATES CRITICAL - 1 security update and 1 non-security update available 
c-ares.x86_64 (security)
telegraf.x86_64

System (please complete the following information):

• OS: Alma Linux
• OS Version: 9.2
• check_updates Version: 2.0.3 through EPEL

Additional context/output

If I run the command manually this problem does not occur. It seems Icinga suppresses $HOME, which I'm not sure is needed for this plugin anyway.

[SMillerDev]

Wow, that is an incredibly fast response and fix. Thanks a lot @matteocorti !

[matteocorti]

Thanks for the report. I just released version 2.0.4.