Fix deprecated use of +stringWithContentsOfFile:

Signed-off-by: Jonathan 'Wolf' Rentzsch <[email protected]>

Author: ctp

Plugin/CTFsIFRSupport.m

@@ -90,7 +90,8 @@ - (void) _disableSIFR
 		NSString *addOnPath = [clickBundle pathForResource: jsFileName ofType: @"js"];
 
 		if( addOnPath ) {
-			NSString *sifrAddOnJS = [NSString stringWithContentsOfFile: addOnPath];
+            NSStringEncoding enc ;
+			NSString *sifrAddOnJS = [NSString stringWithContentsOfFile: addOnPath usedEncoding: &enc error: nil];
 
 			if (sifrAddOnJS && ![sifrAddOnJS isEqualToString: @""])
 				[[sifrWebView windowScriptObject] evaluateWebScript: sifrAddOnJS];