[Fix] drop use of RegExps

Author: neurolag

src/rules/order.js

@@ -242,7 +242,7 @@ function fixOutOfOrder(context, firstNode, secondNode, order, named) {
 
     if (order === 'before') {
       const trimmed = secondCode.trimEnd();
-      const gapCode = sourceCode.text.substring(firstRootEnd, secondRootStart).replace(/,$/, '');
+      const gapCode = sourceCode.text.substring(firstRootEnd, secondRootStart - 1);
       const whiespaces = secondCode.substring(trimmed.length);
       context.report({
         node: secondNode.node,
@@ -253,7 +253,7 @@ function fixOutOfOrder(context, firstNode, secondNode, order, named) {
       });
     } else if (order === 'after') {
       const trimmed = firstCode.trimEnd();
-      const gapCode = sourceCode.text.substring(secondRootEnd, firstRootStart).replace(/^,/, '');
+      const gapCode = sourceCode.text.substring(secondRootEnd + 1, firstRootStart);
       const whiespaces = firstCode.substring(trimmed.length);
       context.report({
         node: secondNode.node,