KConfig: preserve the milliseconds component of QDateTime
I stored a file's lastModified() into KConfig, to compare with it again on next start, and the loss of milliseconds made the code think the timestamps didn't match, even when they did.
I stored a file's lastModified() into KConfig, to compare with it again on next start, and the loss of milliseconds made the code think the timestamps didn't match, even when they did.