message: [lldb] [lldbtest] Fix getBuildFlags() not to use libstdc++ on NetBSD
  Remove the code forcing -stdlib=libstdc++ on NetBSD in getBuildFlags()
  method.  NetBSD uses libc++ everywhere else, and using libstdc++ here
  causes lang/cpp/dynamic-value to fail to build.
diff: @@ -1666,7 +1666,8 @@ class Base(unittest2.TestCase):
  elif self.getPlatform() == "openbsd":
  cflags += " -stdlib=libc++"
  elif self.getPlatform() == "netbsd":
  - cflags += " -stdlib=libstdc++"
  + # NetBSD defaults to libc++
  + pass
  elif "clang" in self.getCompiler():
  cflags += " -stdlib=libstdc++"
  