SIAB numerical atomic orbitals generating package is not working due to the deletion of keyword `printe`

[AsTonyshment]

Describe the bug

I'm attempting to generate new orbitals using my customized pseudopotential file with the SIAB package provided by ABACUS, following the tutorial in the documentation at https://mcresearch.github.io/abacus-user-guide/abacus-nac3.html.

However, in PR #6326, the INPUT parameter printe was removed. When using the develop branch of ABACUS, this results in the following error:

                              ABACUS v3.9.0.9

               Atomic-orbital Based Ab-initio Computation at UStc                    

                     Website: http://abacus.ustc.edu.cn/                             
               Documentation: https://abacus.deepmodeling.com/                       
                  Repository: https://github.com/abacusmodeling/abacus-develop       
                              https://github.com/deepmodeling/abacus-develop         
                      Commit: 7aa668ae1 (Mon Jul 14 15:32:27 2025 +0800)

 Tue Jul 15 15:12:04 2025
 THE PARAMETER NAME 'printe' IS INCORRECT!

While using an older version works fine, this issue should be addressed promptly to maintain compatibility with ABACUS development.

[mohanchen]

Thanks, we should think of a solution to solve the issue.

[QuantumMisaka]

@mohanchen I also consider that the function of printe is needed for some cases. e.g. users want the electron and energy output is the middle of SCF calculation for some hard tasks.

[mohanchen]

Users can try to use this command in new version:

out_band
Type: Boolean Integer

Description: Whether to output the eigenvalues of the Hamiltonian matrix (in eV) into the running log during electronic iterations and into a file at the end of calculations. The former can be used with the ‘out_freq_elec’ parameter while the latter option allows the output precision to be set via a second parameter, with a default value of 8. The output file names are:

nspin = 1 or 4: eigs1.txt;

nspin = 2: eigs1.txt and eigs2.txt;

For more information, refer to the band.md

Default: False