conf-space-keywords is a variable defined in `conf-mode.el'.
Its value is
nil
This variable is safe as a file local variable if its value
satisfies the predicate `stringp'.
Documentation:
Regexps for functions that may come before a space assignment.
This allows constructs such as
keyword var value
This variable is best set in the file local variables, or through
`conf-space-keywords-alist'.