Update index.js

format by removing empty space

@@ -37,7 +37,7 @@ export function parseTime(time, cFormat) {
   const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
     let value = formatObj[key]
     // Note: getDay() returns 0 on Sunday
-    if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value ] }
+    if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value] }
     if (result.length > 0 && value < 10) {
       value = '0' + value
     }