Bug 67726 Refactoring fails if validate edit returns a cancel status [refactoring]
org.eclipse.ltk.core.refactoring/src/org/eclipse/ltk/core/refactoring/RefactoringStatus.java
if (!isOK()) {
			for (Iterator iter= fEntries.iterator(); iter.hasNext(); ) {
				buff.append("\t") 
					.append(iter.next()).append("\n"); 
			}
		}
		buff.append(">"); 
		return buff.toString();
	}
	
	/*
	 * non java-doc 
	 * for debugging only not for nls
	 */
	static String getSeverityString(int severity) {
		Assert.isTrue(severity >= OK && severity <= FATAL);
		if (severity == RefactoringStatus.OK)
			return "OK"; 
		if (severity == RefactoringStatus.INFO)
			return "INFO"; 
		if (severity == RefactoringStatus.WARNING)
			return "WARNING"; 
		if (severity == RefactoringStatus.ERROR)
			return "ERROR"; 
		if (severity == RefactoringStatus.FATAL)
			return "FATALERROR"; 
		return null;
	}
}