Auto merge of #709 - emilio:fix-stylo-openbsd, r=fitzgen

Minor version bump to peek up clang-sys updates in stylo.

This should fix https://bugzilla.mozilla.org/show_bug.cgi?id=1365488

There aren't any breaking changes since 0.25, only new features and fixes for libclang >3.9

Author: bors-servo

Cargo.lock

@@ -13,7 +13,7 @@ name = "bindgen"
 readme = "README.md"
 repository = "https://github.com/servo/rust-bindgen"
 documentation = "https://docs.rs/bindgen"
-version = "0.25.0"
+version = "0.25.1"
 build = "build.rs"
 
 exclude = [