Update minifier version

GuillaumeGomez · GuillaumeGomez · commit ca517a6ee906 · 2018-10-11T21:37:04.000+02:00
diff --git a/src/librustdoc/Cargo.toml b/src/librustdoc/Cargo.toml
@@ -9,6 +9,6 @@ path = "lib.rs"
 
 [dependencies]
 pulldown-cmark = { version = "0.1.2", default-features = false }
-minifier = "0.0.19"
+minifier = "0.0.20"
 tempfile = "3"
 parking_lot = "0.6.4"
