test: add missing splat

The parameter here is a list, not a string.  Ensure that the we splat the list
into arguments prior to invoke os.path.join.  This would previously fail with a
`startswith` is not a member of `list`.

llvm-svn: 269627

lldb/packages/Python/lldbsuite/test/dotest.py

@@ -640,7 +640,7 @@ def setupSysPath():
                 python_resource_dir = ['LLDB.framework', 'Resources', 'Python']
                 outputPaths = getXcodeOutputPaths(lldbRootDirectory)
                 for outputPath in outputPaths:
-                    candidatePath = os.path.join(outputPath, python_resource_dir)
+                    candidatePath = os.path.join(outputPath, *python_resource_dir)
                     if os.path.isfile(os.path.join(candidatePath, init_in_python_dir)):
                         lldbPythonDir = candidatePath
                         break