@Override
	public boolean applyTo(Program program) {
		try {
			program.getExternalManager().setExternalPath(externalName, null, userDefined);
		}
		catch (InvalidInputException e) {
			throw new AssertException(e);
		}
		return true;
	}
Constructs a new command removing an external program name.
@param externalName the name of the external program name to be removed.
Ghidra/Features/Base/src/main/java/ghidra/app/cmd/refs/ClearExternalNameCmd.java