Merge branch 'jn/fast-import-blob-access'

* jn/fast-import-blob-access: t9300: avoid short reads from dd t9300: remove unnecessary use of /dev/stdin fast-import: Allow cat-blob requests at arbitrary points in stream fast-import: let importers retrieve blobs fast-import: clarify documentation of "feature" command fast-import: stricter parsing of integer options Conflicts: fast-import.c