Don't truncate when it's exactly the max length

Author: mattrobenolt

src/raven.js

@@ -561,8 +561,9 @@ function objectMerge(obj1, obj2) {
 }
 
 function truncate(str, max) {
+    var before = str.length;
     str = str.substr(0, max);
-    if (str.length === max) {
+    if (str.length !== before) {
         str += '…';
     }
     return str;

test/raven.test.js

@@ -204,6 +204,7 @@ describe('globals', function() {
         it('should work as advertised', function() {
             assert.equal(truncate('lolol', 3), 'lol…');
             assert.equal(truncate('lolol', 10), 'lolol');
+            assert.equal(truncate('lol', 3), 'lol');
         });
     });