internal/licenses: add BSD-3-Clause-LBNL

This license is on the OSI approved list.

Fixes golang/go#53690.

Change-Id: I547aa5c738f1143aae79fdc27842aa9f1ebf3602
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/416175
Run-TryBot: Jonathan Amsterdam <jba@google.com>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
diff --git a/internal/licenses/licenses.go b/internal/licenses/licenses.go
index 3cf486f..e62a4e9 100644
--- a/internal/licenses/licenses.go
+++ b/internal/licenses/licenses.go
@@ -144,6 +144,7 @@
 		"BSD-2-Clause-Views",
 		"BSD-3-Clause",
 		"BSD-3-Clause-Clear",
+		"BSD-3-Clause-LBNL",
 		"BSD-3-Clause-Open-MPI",
 		"BSD-4-Clause",
 		"BSD-4-Clause-UC",
diff --git a/tests/screentest/testdata/license-policy-540x1080.a.png b/tests/screentest/testdata/license-policy-540x1080.a.png
index 78c046f..3defe97 100644
--- a/tests/screentest/testdata/license-policy-540x1080.a.png
+++ b/tests/screentest/testdata/license-policy-540x1080.a.png
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diff --git a/tests/screentest/testdata/license-policy.a.png b/tests/screentest/testdata/license-policy.a.png
index cb397ae..58b8cec 100644
--- a/tests/screentest/testdata/license-policy.a.png
+++ b/tests/screentest/testdata/license-policy.a.png
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diff --git a/tests/screentest/testdata/x-tools-directories-expanded-540x1080.a.png b/tests/screentest/testdata/x-tools-directories-expanded-540x1080.a.png
deleted file mode 100644
index 58c992e..0000000
--- a/tests/screentest/testdata/x-tools-directories-expanded-540x1080.a.png
+++ /dev/null
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diff --git a/tests/screentest/testdata/x-tools-directories-expanded.a.png b/tests/screentest/testdata/x-tools-directories-expanded.a.png
deleted file mode 100644
index 044d477..0000000
--- a/tests/screentest/testdata/x-tools-directories-expanded.a.png
+++ /dev/null
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