harfbuzz: Use SPDX 2.1 expression for license. (#199)

Author: waywardmonkeys

harfbuzz/Cargo.toml

@@ -3,7 +3,7 @@ name = "harfbuzz"
 version = "0.4.0"
 
 authors = ["The Servo Project Developers"]
-license = "MIT / Apache-2.0"
+license = "MIT OR Apache-2.0"
 
 description = "Rust bindings to the HarfBuzz text shaping engine"
 repository = "https://github.com/servo/rust-harfbuzz"