C#: Fix unit test.

Author: aschackmull

csharp/ql/test/library-tests/dataflow/global/TaintTrackingPath.expected

@@ -360,6 +360,7 @@ nodes
 | GlobalDataFlow.cs:143:21:143:44 | call to method ApplyFunc : String | semmle.label | call to method ApplyFunc : String |
 | GlobalDataFlow.cs:143:39:143:43 | access to local variable sink4 : String | semmle.label | access to local variable sink4 : String |
 | GlobalDataFlow.cs:144:15:144:19 | access to local variable sink5 | semmle.label | access to local variable sink5 |
+| GlobalDataFlow.cs:150:15:150:22 | access to local variable nonSink0 | semmle.label | access to local variable nonSink0 |
 | GlobalDataFlow.cs:153:21:153:25 | call to method Out : String | semmle.label | call to method Out : String |
 | GlobalDataFlow.cs:154:15:154:19 | access to local variable sink6 | semmle.label | access to local variable sink6 |
 | GlobalDataFlow.cs:156:20:156:24 | SSA def(sink7) : String | semmle.label | SSA def(sink7) : String |