Update: Added more debug messages

Signed-off-by: Pawel Psztyc <jarrodek@gmail.com>

Author: jarrodek

lib/dependencies.js

@@ -270,9 +270,9 @@ class DependendenciesManager {
       exec(cmd, opts, (err, stdout, stderr) => {
         if (err) {
           let currentDir = opts.cwd || process.cwd();
-          reject(new Error('Unable to execute command: ' + err.message +
-            '. Was in dir: ' + currentDir + '. stdout: ', stdout, '. stderr: ',
-            stderr));
+          reject(new Error('  Unable to execute previous command with error: ' +
+            err.message + '.\n  Was in dir: ' + currentDir + '. stdout: ',
+            stdout, '. stderr: ', stderr));
           return;
         }
         resolve(stdout);