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The programs lid and fnid can print lists of file names as the result of queries. The following option controls how these lists are formatted:
The style of `braces' means that file names with common directory prefix and common suffix are printed using the shell's brace notation in order to compress the output. For example, ../src/foo.c ../src/bar.c can be printed in brace notation as ../src/{foo,bar}.c.
The styles of `space' and `newline' mean that file names are separated spaces or by newlines, respectively.
If the list of files is being printed on a terminal, brace notation is the default. If not, file names are separated by spaces if the key is included in the output, and by newlines the key style is `none' (see lid invocation).