@Override
	public String getStatusMsg() {
		return errorMessage;
	}
Constructs a new command for renaming a label within currentNamespace and changing the
namespace to newNamespace.

@param addr Address of label to be renamed
@param oldName the current name of the label to be renamed
@param newName the new name for the label. (null for default)
@param currentNamespace the symbol's current parent name space; null for global namespace
@param newNamespace the desired namespace; null for global namespace
@param source the source of this symbol
Ghidra/Features/Base/src/main/java/ghidra/app/cmd/label/RenameLabelCmd.java