bsd2 clause 2
(?s)Copyright \([Cc]\) \d+.*BSD 2-Clause License
(?s)Copyright.*

BSD 2-Clause License \(https?://www.opensource.org/licenses/bsd-license.php\)

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

[\s\*]*Redistributions\s+of\s+source\s+code\s+must\s+retain\s+the\s+above\s+copyright\s+notice,\s+this\s+list\s+of\s+conditions\s+and\s+the\s+following\s+disclaimer.
[\s\*]*Redistributions\s+in\s+binary\s+form\s+must\s+reproduce\s+the\s+above\s+copyright\s+notice,\s+this\s+list\s+of\s+conditions\s+and\s+the\s+following\s+disclaimer\s+in\s+the\s+documentation\s+and/or\s+other\s+materials\s+provided\s+with\s+the\s+distribution.

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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.
