Update prettier to version 1.8.1

Closes #171

package.json

@@ -40,7 +40,7 @@
     "nyc": "^11.0.2",
     "per-env": "^1.0.2",
     "postcss-import": "^11.0.0",
-    "prettier": "1.7.4",
+    "prettier": "1.8.1",
     "standard": "^10.0.2",
     "sugarss": "^1.0.0",
     "uuid": "^3.0.1"

test/error.js

@@ -41,27 +41,22 @@ test.failing('invalid --config', t => {
 })
 
 test('PluginError', t => {
-  return cli([
-    'test/fixtures/a.css',
-    '-u',
-    'postcss-plugin',
-    '-o',
-    tmp()
-  ]).then(({ err, code }) => {
-    t.is(code, 1, 'expected non-zero error code')
-    t.regex(err.toString(), /Plugin Error: Cannot find module 'postcss-plugin'/)
-  })
+  return cli(['test/fixtures/a.css', '-u', 'postcss-plugin', '-o', tmp()]).then(
+    ({ err, code }) => {
+      t.is(code, 1, 'expected non-zero error code')
+      t.regex(
+        err.toString(),
+        /Plugin Error: Cannot find module 'postcss-plugin'/
+      )
+    }
+  )
 })
 
 test('CssSyntaxError', t => {
-  return cli([
-    'test/fixtures/a.css',
-    '-p',
-    'sugarss',
-    '-o',
-    tmp()
-  ]).then(({ err, code }) => {
-    t.is(code, 1, 'expected non-zero error code')
-    t.regex(err.toString(), /\[1:4] Unnecessary curly bracket/)
-  })
+  return cli(['test/fixtures/a.css', '-p', 'sugarss', '-o', tmp()]).then(
+    ({ err, code }) => {
+      t.is(code, 1, 'expected non-zero error code')
+      t.regex(err.toString(), /\[1:4] Unnecessary curly bracket/)
+    }
+  )
 })

test/watch.js

@@ -59,10 +59,9 @@ test.cb.skip('--watch works', t => {
 
       // Helper functions:
       function isEqual(p, expected) {
-        return Promise.all([
-          read(path.join(dir, p)),
-          read(expected)
-        ]).then(([a, e]) => t.is(a, e))
+        return Promise.all([read(path.join(dir, p)), read(expected)]).then(
+          ([a, e]) => t.is(a, e)
+        )
       }
 
       function done(err) {
@@ -139,10 +138,9 @@ test.cb.skip('--watch postcss.config.js', t => {
 
       // Helper functions:
       function isEqual(p, expected) {
-        return Promise.all([
-          read(path.join(dir, p)),
-          read(expected)
-        ]).then(([a, e]) => t.is(a, e))
+        return Promise.all([read(path.join(dir, p)), read(expected)]).then(
+          ([a, e]) => t.is(a, e)
+        )
       }
 
       function done(err) {
@@ -217,10 +215,9 @@ test.cb.skip('--watch dependencies', t => {
 
       // Helper functions:
       function isEqual(p, expected) {
-        return Promise.all([
-          read(path.join(dir, p)),
-          read(expected)
-        ]).then(([a, e]) => t.is(a, e))
+        return Promise.all([read(path.join(dir, p)), read(expected)]).then(
+          ([a, e]) => t.is(a, e)
+        )
       }
 
       function done(err) {