fix(singleQuote): interpret eslint quote backtick as singleQuote false (#76)

Author: 0x80

src/utils.js

@@ -189,6 +189,8 @@ function getSingleQuote(eslintValue, fallbacks) {
     prettierValue = true
   } else if (eslintValue === 'double') {
     prettierValue = false
+  } else if (eslintValue === 'backtick') {
+    prettierValue = false
   } else {
     prettierValue = eslintValue
   }

src/utils.test.js

@@ -168,6 +168,7 @@ const getPrettierOptionsFromESLintRulesTests = [
   },
   {rules: {'max-len': ['error', {code: 120}]}, options: {printWidth: 120}},
   {rules: {quotes: [2, 'double']}, options: {singleQuote: false}},
+  {rules: {quotes: [2, 'backtick']}, options: {singleQuote: false}},
   {
     rules: {
       'comma-dangle': [