KSycoca unittest: reduce the amount of waiting, if Qt >= 5.8 is used.
Review Request #129734 - Created Dec. 31, 2016 and submitted
|aacid, sengels, vonreth|
lastModified() finally returns milliseconds (qtbase commit 494ced1), which means we don't need to wait a whole second just to detect that a file was modified. Not sure about Windows though...
ksycocatest runs much faster now (700 ms instead of 7 s), and still passes