D15155: [KMountPoint] Fix typo in probablySlow()

[Nathaniel Graham]

ngraham accepted this revision.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D15155

To: broulik, dfaure, dhaumann, aacid, ngraham
Cc: kde-frameworks-devel, michaelh, ngraham, bruns