C++:Add the ImproperNullTerminationTainted.ql query to the test.

Author: geoffw0

cpp/ql/test/query-tests/Likely Bugs/Memory Management/ImproperNullTermination/ImproperNullTerminationTainted.expected

@@ -0,0 +1,2 @@
+| test.cpp:410:10:410:15 | buffer | $@ flows to here and may not be null terminated. | test.cpp:409:18:409:23 | buffer | User-provided value |
+| test.cpp:425:10:425:15 | buffer | $@ flows to here and may not be null terminated. | test.cpp:424:9:424:14 | buffer | User-provided value |

cpp/ql/test/query-tests/Likely Bugs/Memory Management/ImproperNullTermination/ImproperNullTerminationTainted.qlref

@@ -0,0 +1 @@
+Security/CWE/CWE-170/ImproperNullTerminationTainted.ql

cpp/ql/test/query-tests/Likely Bugs/Memory Management/ImproperNullTermination/test.cpp

@@ -407,7 +407,7 @@ void test_read_fread(int read_src, FILE *s)
 		char buffer[buffer_size];
 
 		read(read_src, buffer, buffer_size * sizeof(char));
-		strlen(buffer); // BAD [NOT DETECTED]
+		strlen(buffer); // BAD
 	}
 
 	{
@@ -422,7 +422,7 @@ void test_read_fread(int read_src, FILE *s)
 		char buffer[buffer_size];
 
 		fread(buffer, sizeof(char), buffer_size, s);
-		strlen(buffer); // BAD [NOT DETECTED]
+		strlen(buffer); // BAD
 	}
 
 	{