.../figlet-2.2.5 $ sed -n '8,26p' inflate.c | cut -b 3- | spdx-license-match -g HPND
Match: 83% HPND
Diff:
  --- HPND.txt
  +++ input
  
  @@ -1,21 +1,19 @@
  [-Historical Permission Notice and Disclaimer
  
  <copyright notice>-]  {+Copyright (C) 1995, Edward B. Hamrick+}
  
   Permission to use, copy, [-modify-] {+modify,+} and distribute this software 
  and  its  documentation for any purpose and without fee is hereby granted, 
  provided  that the above copyright notice appear in all [-copies[,] [and]-] 
  {+copies and+}  that both  [-[that] [the]-] {+that+}  copyright notice and this 
  permission notice appear in  supporting  [-documentation[,-]  
  {+documentation,+} and that the name [-[of] <copyright holder> [or <related  
  entities>]-] {+of the copyright holders+}  not be used in  advertising or 
  publicity pertaining to distribution of  the software without  specific, 
  written prior [-permission]. [<copyright  holder>-] {+permission. The copyright 
   holders+} makes no  representations about the suitability of this software  
  for any purpose. It  is provided "as is" without express or implied [-warranty.]
  
  [<copyright holder> DISCLAIMS-] {+warranty.
  
   THE COPYRIGHT HOLDERS DISCLAIM+} ALL WARRANTIES WITH REGARD TO THIS  SOFTWARE, 
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND [-FITNESS[,][.]-] 
  {+FITNESS,+}  IN NO EVENT  SHALL [-<copyright holder>-] {+THE COPYRIGHT 
  HOLDERS+} BE LIABLE FOR ANY SPECIAL, INDIRECT  OR  CONSEQUENTIAL DAMAGES OR ANY 
  DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,  DATA OR PROFITS, WHETHER IN AN 
  ACTION OF CONTRACT, NEGLIGENCE OR OTHER  TORTIOUS ACTION, ARISING OUT OF OR IN 
  CONNECTION WITH THE USE OR PERFORMANCE  OF THIS [-SOFTWARE.]-] {+SOFTWARE.+}