gwen: Ship pdfium license notices in bundles

script/bundle-linux

@@ -189,8 +189,12 @@ if ! echo "${pdfium_sha256}  ${pdfium_tgz}" | sha256sum --check --status 2>/dev/
     echo "${pdfium_sha256}  ${pdfium_tgz}" | sha256sum --check -
 fi
 pdfium_tmp=$(mktemp -d)
-tar -xzf "${pdfium_tgz}" -C "${pdfium_tmp}" "lib/libpdfium.so"
+tar -xzf "${pdfium_tgz}" -C "${pdfium_tmp}" "lib/libpdfium.so" "LICENSE" "licenses"
 cp "${pdfium_tmp}/lib/libpdfium.so" "${zed_dir}/lib/libpdfium.so"
+# BSD-3 of the toolset and its bundled third parties requires retaining the
+# license notices on redistribution.
+mkdir -p "${zed_dir}/share/licenses/pdfium"
+cp "${pdfium_tmp}/LICENSE" "${pdfium_tmp}/licenses/"* "${zed_dir}/share/licenses/pdfium/"
 rm -rf "${pdfium_tmp}"
 
 # Icons