gcc-15 -fanalyzer fixes#146

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gdevenyi wants to merge 20 commits intoBIC-MNI:developfrom

gdevenyi:gcc15-fanalyzer-fixes

Commits on Mar 29, 2026

Fix double va_end in v_mi2log_message

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Fix FILE leak in milog_init on re-initialization

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Fix possible NULL dereference in time_stamp after malloc failure

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Fix memory leak in alloc2d on partial allocation failure

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Fix NULL dereferences after allocation failures in m2util.c

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Fix uninitialized ndims and NULL dereferences in hdf_convenience.c

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Fix NULL dereferences after malloc in grpattr.c

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Fix memory leaks and NULL dereferences in dimension.c

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Fix possible NULL dereference after malloc in miget_space_name

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Fix possible NULL dereference in _miget_file_dimension

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Fix NULL dereferences after MALLOC in voxel_loop.c

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Fix possible NULL dereference in miexpand_file

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Fix NULL dereferences and uninitialized variables in files.c

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Fix possible NULL dereference in input_mnc2.c

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Fix NULL dereference and memory leak in input_nifti.c

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Add default cases to MI_TO_DOUBLE and MI_FROM_DOUBLE switch macros

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