message: Remove redundant second os.path.join call [NFC]
diff: @@ -1865,8 +1865,7 @@ class TestBase(Base):
  Base.setUp(self)
  # Set the clang modules cache path used by LLDB.
  - mod_cache = os.path.join(os.path.join(os.environ["LLDB_BUILD"],
  - "module-cache-lldb"))
  + mod_cache = os.path.join(os.environ["LLDB_BUILD"], "module-cache-lldb")
  self.runCmd('settings set symbols.clang-modules-cache-path "%s"'
  % mod_cache)
  