Address alert message style violation

Author: atorralba

java/ql/src/Security/CWE/CWE-441/UnsafeContentUriResolution.ql

@@ -18,5 +18,6 @@ import DataFlow::PathGraph
 
 from DataFlow::PathNode src, DataFlow::PathNode sink
 where any(UnsafeContentResolutionConf c).hasFlowPath(src, sink)
-select sink.getNode(), src, sink, "This ContentResolver method that resolves a URI depends on $@.",
-  src.getNode(), "a user-provided value"
+select sink.getNode(), src, sink,
+  "This ContentResolver method that resolves a URI depends on a $@.", src.getNode(),
+  "user-provided value"