DEFVAR_LISP ("last-abbrev-text", &Vlast_abbrev_text,
doc: /* The exact text of the last abbrev expanded.
-nil if the abbrev has already been unexpanded. */);
+A value of nil means the abbrev has already been unexpanded. */);
DEFVAR_INT ("last-abbrev-location", &last_abbrev_point,
doc: /* The location of the start of the last abbrev expanded. */);