Fixup license clarifications (#533)

- Fixup license clarification
- Add clarification example
- Add test

Resolves: #521 
Resolves: #524

Cargo.toml

@@ -14,7 +14,7 @@ documentation = "https://docs.rs/cargo-deny"
 homepage = "https://github.com/EmbarkStudios/cargo-deny"
 categories = ["development-tools::cargo-plugins"]
 keywords = ["cargo", "license", "spdx", "ci", "advisories"]
-exclude = ["examples/", ".github/", "tests"]
+exclude = ["docs/", "examples/", ".github/", "tests"]
 rust-version = "1.70.0"
 
 [badges]

examples/13_license_clarification/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "license-clarification"
+version = "0.1.0"
+authors = ["Jake Shadle <jake.shadle@embark-studios.com>"]
+license = "MIT OR Apache-2.0"
+edition = "2018"
+
+[[bin]]
+name = "allow-license"
+path = "main.rs"
+
+[dependencies]
+rustls-webpki = "=0.100.1"

examples/13_license_clarification/README.md

@@ -0,0 +1,4 @@
+# 13_license_clarification
+
+This example shows how to clarify the license information for a project that may
+have missing or non-machine readable licenses that need a human to correct.

examples/13_license_clarification/deny.toml

@@ -0,0 +1,27 @@
+[licenses]
+allow = ["MIT", "Apache-2.0", "ISC"]
+private = { ignore = true }
+exceptions = [
+    { name = "ring", allow = [
+        "OpenSSL",
+    ] },
+    { name = "unicode-ident", allow = [
+        "Unicode-DFS-2016",
+    ] },
+    { name = "rustls-webpki", allow = [
+        "BSD-3-Clause",
+    ] },
+]
+
+[[licenses.clarify]]
+name = "ring"
+expression = "ISC AND MIT AND OpenSSL"
+license-files = [{ path = "LICENSE", hash = 0xbd0eed23 }]
+
+[[licenses.clarify]]
+name = "rustls-webpki"
+expression = "ISC AND BSD-3-Clause"
+license-files = [
+    { path = "LICENSE", hash = 0x001c7e6c },
+    { path = "third-party/chromium/LICENSE", hash = 0x001c7e6c },
+]

examples/13_license_clarification/main.rs

@@ -0,0 +1 @@
+fn main() {}