D5770: Avoid showing wrong timezone suffix in krunner time

[Ronnie Thomas]

rthomas added reviewers: davidedmundson, broulik.

REPOSITORY
  R114 Plasma Addons

REVISION DETAIL
  https://phabricator.kde.org/D5770

To: rthomas, davidedmundson, broulik
Cc: plasma-devel, ZrenBot, spstarr, progwolff, lesliezhai, ali-mohamed, 
jensreuterberg, abetts, sebas, apol, lukas