git_env_ulong    1462 cache.h        extern unsigned long git_env_ulong(const char *, unsigned long);
git_env_ulong     698 http-backend.c 	max_request_buffer = git_env_ulong("GIT_HTTP_MAX_REQUEST_BUFFER",
git_env_ulong     739 sha1_file.c    		limit = git_env_ulong("GIT_MMAP_LIMIT", 0);
git_env_ulong      16 wrapper.c      		limit = git_env_ulong("GIT_ALLOC_LIMIT", 0);