bug#10262: 24.0.91; find-dired ignores cdr of find-ls-option

[Glenn Morris]

Version: 24.0.93

I changed it to say:

  "A pair of options to produce and parse an `ls -l'-type list from `find'.
This is a cons of two strings (FIND-OPTION . LS-SWITCHES).
FIND-OPTION is the option (or options) passed to `find' to produce
a file listing in the desired format.  LS-SWITCHES is a set of
`ls' switches that tell dired how to parse the output of `find'.

The two options must be set to compatible values.
For example, to use human-readable file sizes with GNU ls:
   \(\"-exec ls -ldh {} +\" . \"-ldh\")

To use GNU find's inbuilt \"-ls\" option to list files:
   \(\"-ls\" . \"-dilsb\")
since GNU find's output has the same format as using GNU ls with
the options \"-dilsb\"."