D7695: Fix message when the image was shared using a plugin that doesn't reply with a URL

[Aleix Pol Gonzalez]

apol created this revision.
Restricted Application added a project: Plasma.
Restricted Application added a subscriber: plasma-devel.

REVISION SUMMARY
  BUG: 383276

REPOSITORY
  R166 Spectacle

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D7695

AFFECTED FILES
  src/Gui/KSMainWindow.cpp

To: apol, #plasma
Cc: plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, 
abetts, sebas, apol, mart