"Fix" build by annotating the new test as !shouldfail

The quick test under ctest checks only for no tests failing, not for the
expected output.

projects/SelfTest/MiscTests.cpp

@@ -400,8 +400,8 @@ static int f() {
     return 1;
 }
 
-TEST_CASE( "#835 -- errno should not be touched by Catch" ) {
-  errno = 1;
-  CHECK(f() == 0);
-  REQUIRE(errno == 1); // Check that f() doesn't touch errno.    
+TEST_CASE( "#835 -- errno should not be touched by Catch", "[!shouldfail]" ) {
+    errno = 1;
+    CHECK(f() == 0);
+    REQUIRE(errno == 1); // Check that f() doesn't touch errno.    
 }