@Override
	public boolean applyTo(Program program) {
		try {
			DataUtilities.createData(program, addr, stringDataType, length, clearMode);
		}
		catch (CodeUnitInsertionException e) {
			msg = e.getMessage();
			return false;
		}

		return true;
	}
Construct command for creating fixed-length ASCII string Data.
Current Data at addr will be cleared if it already exists.
@param addr address where string should be created.
@param length byte-length of string
Ghidra/Features/Base/src/main/java/ghidra/app/cmd/data/CreateStringCmd.java