chore(dev): upgrade env_logger to 0.4

seanmonstar · seanmonstar · commit 695bb487dbd0 · 2017-05-29T11:01:01.000-07:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -35,7 +35,7 @@ unicase = "1.0"
 url = "1.0"
 
 [dev-dependencies]
-env_logger = "0.3"
+env_logger = "0.4"
 
 [build-dependencies]
 rustc_version = "0.1"
