[PATCH] Prevent building of libunwind, libcxx, libcxxabi, and lld on powerpc64 buildbots

[Bill Seurer]

+ subdirs='llvm llvm/tools/clang llvm/projects/compiler-rt'
+ llvm/projects/libcxx llvm/projects/libcxxabi llvm/tools/lld
/mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/sanitizer_buildbot/sanitizers/buildbot_functions.sh: line 23: llvm/projects/libcxx: Is a directory

  if [ "$BUILDBOT_BUILDERNAME" != "sanitizer-ppc64-linux1" -a "$BUILDBOT_BUILDERNAME" != "sanitizer-ppc64le-linux" ]; then
    subdirs=${subdirs} llvm/projects/libcxx llvm/projects/libcxxabi llvm/tools/lld
  fi

It looks like that is the line that broke things.  Should the right hand side be in quotes?

  if [ "$BUILDBOT_BUILDERNAME" != "sanitizer-ppc64-linux1" -a "$BUILDBOT_BUILDERNAME" != "sanitizer-ppc64le-linux" ]; then
    subdirs="${subdirs} llvm/projects/libcxx llvm/projects/libcxxabi llvm/tools/lld"
  fi


http://reviews.llvm.org/D10033

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