Minor lint tweaks. (#69)

lib/install.js

@@ -1,6 +1,6 @@
 const path = require('path');
-const bin = require('./');
 const log = require('logalot');
+const bin = require('.');
 
 function getProjectRoot() {
   // projectRoot on postinstall could be INIT_CWD introduced in npm>=5.4
@@ -21,10 +21,10 @@ function getProjectRoot() {
 }
 
 bin(getProjectRoot()).run(['version'])
-.then(() => {
-  log.success('Hugo binary is installed successfully');
-})
-.catch(err => {
-  log.error(err.message);
-  log.error('Hugo binary installation failed');
-});
+  .then(() => {
+    log.success('Hugo binary is installed successfully');
+  })
+  .catch(err => {
+    log.error(err.message);
+    log.error('Hugo binary installation failed');
+  });