devel/git-cinnabar: unbreak after 317ce5d4d408

helper/cinnabar-fast-import.c:525:5: error: redefinition of 'write_object_file'
int write_object_file(const void *buf, unsigned long len, const char *type,

^

./object-store.h:229:19: note: previous definition is here
static inline int write_object_file(const void *buf, unsigned long len,

^