removed the trailing spaces in mode function

Author: yaroslavya

stacktrace.js

@@ -68,19 +68,19 @@
         mode: function(e) {
             if (e['arguments'] && e.stack) {
                 return 'chrome';
-            } 
+            }
 
             if (e.stack && e.sourceURL) {
                 return 'safari';
-            } 
+            }
 
             if (e.stack && e.number) {
                 return 'ie';
-            } 
+            }
 
             if (e.stack && e.fileName) {
                 return 'firefox';
-            } 
+            }
 
             if (e.message && e['opera#sourceloc']) {
                 // e.message.indexOf("Backtrace:") > -1 -> opera9
@@ -94,7 +94,7 @@
                     return 'opera9'; // use e.message
                 }
                 return 'opera10a'; // use e.stacktrace
-            } 
+            }
 
             if (e.message && e.stack && e.stacktrace) {
                 // e.stacktrace && e.stack -> opera10b
@@ -103,7 +103,7 @@
                 }
                 // e.stacktrace && e.stack -> opera11
                 return 'opera11'; // use e.stacktrace, format differs from 'opera10a', 'opera10b'
-            } 
+            }
 
             if (e.stack && !e.fileName) {
                 // Chrome 27 does not have e.arguments as earlier versions,