Merge pull request #864 from charlespierce/install_dir_symlink

[Tiny] Correctly locate install_dir

Author: charlespierce

crates/volta-core/src/layout/mod.rs

@@ -53,10 +53,10 @@ pub fn volta_install<'a>() -> Fallible<&'a VoltaInstall> {
 /// actual binary files
 fn default_install_dir() -> Fallible<PathBuf> {
     env::current_exe()
+        .and_then(canonicalize)
         .map(|mut path| {
             path.pop(); // Remove the executable name from the path
             path
         })
-        .and_then(canonicalize)
         .with_context(|| ErrorKind::NoInstallDir)
 }