Fix stray ] in example output

Author: hsutter

regression-tests/mixed-lifetime-safety-and-null-contracts.cpp2

@@ -28,7 +28,7 @@ auto call_my_framework(const char* msg CPP2_SOURCE_LOCATION_PARAM) {
         std::cout
             << "from source location: "
             << loc
-            << "]\n";
+            << "\n";
     }
     exit(0);
 }

regression-tests/test-results/gcc-14-c++2b/mixed-lifetime-safety-and-null-contracts.cpp.execution

@@ -1,2 +1,2 @@
 sending error to my framework... [dynamic null dereference attempt detected]
-from source location: mixed-lifetime-safety-and-null-contracts.cpp2(17) void try_pointer_stuff()]
+from source location: mixed-lifetime-safety-and-null-contracts.cpp2(17) void try_pointer_stuff()

regression-tests/test-results/mixed-lifetime-safety-and-null-contracts.cpp

@@ -36,7 +36,7 @@ auto call_my_framework(const char* msg CPP2_SOURCE_LOCATION_PARAM) {
         std::cout
             << "from source location: "
             << loc
-            << "]\n";
+            << "\n";
     }
     exit(0);
 }

regression-tests/test-results/msvc-2022-c++latest/mixed-lifetime-safety-and-null-contracts.cpp.execution

@@ -1,2 +1,2 @@
 sending error to my framework... [dynamic null dereference attempt detected]
-from source location: mixed-lifetime-safety-and-null-contracts.cpp2(17) void __cdecl try_pointer_stuff(void)]
+from source location: mixed-lifetime-safety-and-null-contracts.cpp2(17) void __cdecl try_pointer_stuff(void)