Cleanup: misc spelling fixes

.clang-format

CMakeLists.txt

GNUmakefile

build_files/buildbot/config/blender_linux.cmake

intern/cycles/kernel/filter/filter_reconstruction.h

intern/cycles/kernel/svm/svm_ies.h

intern/cycles/render/graph.cpp

intern/cycles/render/osl.cpp

intern/ghost/intern/GHOST_SystemWin32.cpp

release/scripts/startup/bl_operators/userpref.py

source/blender/alembic/intern/alembic_capi.cc

source/blender/blenkernel/intern/anim_sys.c

source/blender/blenkernel/intern/camera.c

source/blender/blenkernel/intern/displist.c

source/blender/blenkernel/intern/dynamicpaint.c

source/blender/blenkernel/intern/fcurve.c

source/blender/blenkernel/intern/gpencil.c

source/blender/blenkernel/intern/gpencil_modifier.c

source/blender/blenkernel/intern/idcode.c

source/blender/blenkernel/intern/ipo.c