Merge remote-tracking branch 'remotes/mjt/tags/pull-trivial-patches-2015-09-11' into staging

trivial patches for 2015-09-11

# gpg: Signature made Fri 11 Sep 2015 12:02:43 BST using RSA key ID A4C3D7DB
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"

* remotes/mjt/tags/pull-trivial-patches-2015-09-11: (26 commits)
  virtio-vga: enable for i386
  hw/arm/spitz: Remove meaningless blank Property
  hw/gpio/zaurus: Remove meaningless blank Property
  hw/virtio/virtio-pci: Remove meaningless blank Property
  hw/s390x/s390-virtio-bus: Remove meaningless blank Property
  typofixes - v4
  qapi-schema: remove legacy<> from doc
  disas/microblaze: Remove unused code
  help: dd missing newline
  Target-ppc: Remove unnecessary variable
  baum: Fix build with debugging enabled
  linux-user: Fix warnings caused by missing 'static' attribute
  opts: produce valid command line in qemu_opts_print
  docs: fix a qga/qapi-schema.json comment
  trivial: remove trailing newline from error_report
  maint: avoid useless "if (foo) free(foo)" pattern
  maint: avoid useless "if (foo) free(foo)" pattern
  maint: remove unused include for strings.h
  maint: remove unused include for signal.h
  maint: remove unused include for dirent.h
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>