i.ortho.init: fix use flag bug

[jayneel-shah18]

This PR fixes a logic bug in the i.ortho.init module, it caused incorrect persistence and reporting of the use flag, even when the -r flag was passed by the user.

Code change:

The use flag is updated only when -r is explicitly passed:

if (use_flag->answer) { init_info->status = 1; }

Tested Behaviour:

• use=1 is set when -r is passed.
• use remains unchanged when -r is omitted.
• Values persist correctly across multiple runs.

This PR fixes https://github.com/OSGeo/grass/issues/5853.

[petrasovaa]

This is not fixing anything, it will result in the same behavior. Since neither of us have a good understanding of the intended behavior, I suggest to leave it and remove it from the test.

[jayneel-shah18]

Understood, I will remove this from the tests so that we can merge them.