- Update to version 1.30.7:
* Version 1.30.7.
* configure: Use printf to print $ISOPROG
* configure: Print the version of curl, libnbd and libssh
* configure: Make the 'feature' function print the dots
* tests/test-protect.c: Fix typo in previous commit
* tests/test-protect.c: Skip test if "disk" was not created
* common/include: Rename BUILD_BUG_ON_ZERO to something more meaningful
* common/include/test-array-size.c: Avoid Clang warning
* vddk: Demote another "phone home" error message to debug
* Use ARRAY_SIZE macro in various places in nbdkit
* common/include: Add ARRAY_SIZE macro
* tests/test-parallel-sh.sh: Skip test under valgrind + debuginfod
* tests/test-parallel-sh.sh: Small cleanups
* server: Work around incorrect include in gnutls/socket.h
* server: Display kTLS setting in debug output
* exitwhen: Check nbdkit doesn't exit before the pipe is closed
* valgrind: Update comment about valgrind bug affecting OCaml
* ocaml: Add further valgrind suppression
* ocaml: Add valgrind suppression for OCaml 4.14 bug
* perl: Move GCC diagnostic ignored earlier
* docs/nbdkit-protocol.pod: block size support was added in 1.30
- Enable linuxdisk plugin

- Update to version 1.30.6:
* Version 1.30.6.
* exitwhen: Link to example of how to use exit-when-pipe-closed
* rate: Miscellaneous enhancements to comments and debug messages
* ext2: Improve comments
* eval: Provide default for .can_cache