- files are sorted by their filename in alphabetical
- order, regardless in which of the directories they
- reside, to guarantee that a specific preset file takes
- precedence over another file with an alphabetically
- earlier name, if both files contain lines that apply
- to the same unit names. It is recommended to prefix
- all file names with two-digit number, to simplify
- ordering.</para>
+ files are sorted by their filename in lexicographic
+ order, regardless of which of the directories they
+ reside in. If multiple files specify the same unit name,
+ the entry in the file with the lexicographically earliest
+ name will be applied. It is recommended to prefix all
+ filenames with a two-digit number and a dash, to simplify
+ the ordering of the files.</para>