void programSavedAs() {
			programLocator = new ProgramLocator(program.getDomainFile());
			displayName = null;
		}
Returns true if there is at least one program that has unsaved changes.
@return true if there is at least one program that has unsaved changes.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/progmgr/MultiProgramManager.java