First pass at new upstream release 2.30:

* New upstream release 2.30:
  - debian/symbols.wildcard: Add 2.30, and debian/control: Regenrate.
  - debian/patches/any/git-libio-stdout-putc.diff: Upstreamed.
  - debian/patches/any/git-pexpect-pretty-printers.diff: Upstreamed.
  - debian/patches/any/git-socket-constants.diff: Upstreamed.
  - debian/patches/any/local-tst-eintr1-eagain.diff: Obsolete.
  - debian/patches/hurd-i386/git-renameat2.diff: Upstreamed.
  - debian/patches/any/submitted-resolv-unaligned.diff: Rebased.
  - debian/patches/hurd-i386/tg-hurdsig-SA_SIGINFO.diff: Rebased.
  - debian/patches/hurd-i386/tg-hurdsig-fixes-2.diff: Rebased.
  - debian/patches/hurd-i386/tg-hurdsig-fixes.diff: Rebased.
  - debian/patches/hurd-i386/tg-hurdsig-global-dispositions.diff: Rebased.
  - debian/patches/hurd-i386/tg-io_select_timeout.diff: Rebased.
  - debian/patches/hurd-i386/tg-thread-cancel.diff: Rebased.
  - debian/patches/kfreebsd/submitted-auxv.diff: Rebased.