Testsuite names are not properly sanitised if not in t/ folder

[LordAro]

Spotted while looking through the code. Needs to be a bit more general, I think?

Doesn't actually affect anything due to the following _clean_to_java_class_name call, but may produce unexpected results

TAP-Formatter-JUnit/lib/TAP/Formatter/JUnit/Session.pm

Lines 325 to 331 in e0efe87

	sub _get_testsuite_name {
	my $self = shift;
	my $name = $self->name;
	$name =~ s{^\./}{};
	$name =~ s{^t/}{};
	return _clean_to_java_class_name($name);
	}