`balooctl add includeFolders/excludeFolders` was checking for parent directories using a startsWith string match, so directories with the same initial character would match. Fix this by appending a path separator to the path used for parent
checking.
[Inspired by the patch James Ausmus submitted with https://bugs.kde.org/show_bug.cgi?id=396535]
BUG: 396535
FIXED-IN: 5.51