rescue.js in prettier-2.0.0.pre.rc4

- old
+ new

@@ -50,13 +50,16 @@
 // Ripper solely so that we have a nice place to attach inline comments.
 const printRescueEx = (path, opts, print) => {
     const [exception, variable] = path.getValue().body;
     const parts = [];
     if (exception) {
+        // If there's just one exception being rescued, then it's just going to be a
+        // single doc node.
         let exceptionDoc = path.call(print, "body", 0);
-        if (Array.isArray(exceptionDoc)) {
-            const joiner = [",", line];
-            exceptionDoc = group(join(joiner, exceptionDoc));
+        // If there are multiple exceptions being rescued, then we're going to have
+        // multiple doc nodes returned as an array that we need to join together.
+        if (["mrhs_add_star", "mrhs_new_from_args"].includes(exception.type)) {
+            exceptionDoc = group(join([",", line], exceptionDoc));
         }
         parts.push(" ", exceptionDoc);
     }
     if (variable) {
         parts.push(" => ", path.call(print, "body", 1));