fix examples

Author: gammasoft71

examples/xtd.tunit.examples/hello_worlds/hello_world_tunit/src/hello_world_tunit.cpp

@@ -12,7 +12,7 @@ namespace unit_tests {
       auto s = string {'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!'};
       valid::are_equal(13_z, s.length());
       string_assert::starts_with("Hello,", s);
-      string_assert::does_not_end_with(" le monde!", s);
+      string_assert::does_end_with(" World!", s);
     }
   };
 }

examples/xtd.tunit.examples/hello_worlds/hello_world_tunit_constraints/src/hello_world_tunit_constraints.cpp

@@ -11,7 +11,7 @@ namespace unit_tests {
     auto test_method_(create_string_from_chars) {
       auto s = string {'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!'};
       valid_that(s.length()).is().equal_to(13_z);
-      assert_that(s).does().start_with("Hello,").and_().does().not_().end_with(" le monde!");
+      assert_that(s).does().start_with("Hello,").and_().does().end_with(" World!");
     }
   };
 }

examples/xtd.tunit.examples/hello_worlds/hello_world_tunit_without_helpers/src/hello_world_tunit_without_helpers.cpp

@@ -17,7 +17,7 @@ namespace unit_tests {
       auto s = string {'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!'};
       valid::are_equal(13_z, s.length());
       string_assert::starts_with("Hello,", s);
-      string_assert::does_not_end_with(" le monde!", s);
+      string_assert::does_end_with(" World!", s);
     }
   };
 }