Library /sys$common/syshlp/lse$menu.hlb DECW search pref span space  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Determines how LSE matches blank space in the search string.

  This command instructs LSE to allow each blank space in the search
  string to match sequences of one or more characters containing
  blanks, tabs, and, at most, a single line break.  By default, spaces
  are not spanned.  Not applicable to PATTERN SEARCH or PATTERN
  SUBSTITUTE commands.