use (const char*) rather than (char*) where possible.

doc/doxygen/Doxyfile

source/blender/blenkernel/BKE_animsys.h

source/blender/blenkernel/BKE_blender.h

source/blender/blenkernel/BKE_customdata_file.h

source/blender/blenkernel/BKE_lattice.h

source/blender/blenkernel/BKE_pointcache.h

source/blender/blenkernel/BKE_property.h

source/blender/blenkernel/BKE_sequencer.h

source/blender/blenkernel/BKE_text.h

source/blender/blenkernel/BKE_unit.h

source/blender/blenkernel/BKE_writeffmpeg.h

source/blender/blenkernel/intern/anim_sys.c

source/blender/blenkernel/intern/blender.c

source/blender/blenkernel/intern/customdata_file.c

source/blender/blenkernel/intern/fcurve.c

source/blender/blenkernel/intern/lattice.c

source/blender/blenkernel/intern/pointcache.c

source/blender/blenkernel/intern/property.c

source/blender/blenkernel/intern/sequencer.c

source/blender/blenkernel/intern/text.c