Wrong license listed in LEGAL

[voxik]

Trying to update the license for RDoc in Fedora to SPDX format, I think that the licenses would deserve review. So far, I was looking into Darkfish and while LEGAL file claims it is MIT licensed, the lib/rdoc/generator/darkfish.rb it refers to is clearly BSD licensed:

rdoc/lib/rdoc/generator/darkfish.rb

Lines 23 to 48 in 8309caa

	# Copyright (c) 2007, 2008, Michael Granger. All rights reserved.
	#
	# Redistribution and use in source and binary forms, with or without
	# modification, are permitted provided that the following conditions are met:
	#
	# * Redistributions of source code must retain the above copyright notice,
	# this list of conditions and the following disclaimer.
	#
	# * Redistributions in binary form must reproduce the above copyright notice,
	# this list of conditions and the following disclaimer in the documentation
	# and/or other materials provided with the distribution.
	#
	# * Neither the name of the author/s, nor the names of the project's
	# contributors may be used to endorse or promote products derived from this
	# software without specific prior written permission.
	#
	# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
	# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
	# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
	# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
	# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
	# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

This also corresponds with upstream repository

However, it is true it used to be MIT and this was the evolution:

b5db27f#diff-ddeb55726f649cf3320f376f40db7ca34e75cc0f53765ca8fcef20ca35161bf6
b5db27f#diff-ddeb55726f649cf3320f376f40db7ca34e75cc0f53765ca8fcef20ca35161bf6
8b295fc#diff-ddeb55726f649cf3320f376f40db7ca34e75cc0f53765ca8fcef20ca35161bf6

But later, there was the LEGAL file updated, which was probably wrong:

3628e19#diff-6cf7a04d52b77124c55772061ea2c0411578640ac0b6af372577b90e1b40ae61