Update open crate to latest version.

Cargo.lock

@@ -984,9 +984,9 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
 name = "open"
-version = "1.7.1"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcea7a30d6b81a2423cc59c43554880feff7b57d12916f231a79f8d6d9470201"
+checksum = "b46b233de7d83bc167fe43ae2dda3b5b84e80e09cceba581e4decb958a4896bf"
 dependencies = [
  "pathdiff",
  "winapi 0.3.9",

Cargo.toml

@@ -24,7 +24,7 @@ handlebars = "4.0"
 lazy_static = "1.0"
 log = "0.4"
 memchr = "2.0"
-open = "1.1"
+open = "2.0"
 pulldown-cmark = "0.7.0"
 regex = "1.0.0"
 serde = "1.0"

src/main.rs

@@ -132,6 +132,7 @@ fn get_book_dir(args: &ArgMatches) -> PathBuf {
 }
 
 fn open<P: AsRef<OsStr>>(path: P) {
+    info!("Opening web browser");
     if let Err(e) = open::that(path) {
         error!("Error opening web browser: {}", e);
     }