Update to clang-sys 1.0.0

Author: KyleMayes

Cargo.lock

@@ -50,7 +50,7 @@ cexpr = "0.4"
 cfg-if = "0.1.0"
 # This kinda sucks: https://github.com/rust-lang/cargo/issues/1982
 clap = { version = "2", optional = true }
-clang-sys = { version = "0.29", features = ["clang_6_0"] }
+clang-sys = { version = "1", features = ["clang_6_0"] }
 lazycell = "1"
 lazy_static = "1"
 peeking_take_while = "0.1.2"