[Koha-bugs] [Bug 20056] Uninitialized warn in cmp_sysprefs.pl

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=20056

--- Comment #1 from Marcel de Rooy <m.de.rooy at rijksmuseum.nl> ---
Created attachment 70789
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https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=70789&action=edit
Bug 20056: Resolve uninitialized warn in cmp_sysprefs.pl

When running a compare with --upd flag, I got the following warn:
    Use of uninitialized value in addition (+) at
misc/maintenance/cmp_sysprefs.pl line 125.
This is simply resolved by not returning undef but 0 in case of the Version
syspref in the sub UpdateOnePref.

Test plan:
Look at this simple change.

Signed-off-by: Marcel de Rooy <m.de.rooy at rijksmuseum.nl>

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