[cindex.py] Use spaces, not tabs for indentation

Reported by: Francisco Lopes  <oblita@gmail.com>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162182 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/bindings/python/clang/cindex.py b/bindings/python/clang/cindex.py
index c2a6721..ee85585 100644
--- a/bindings/python/clang/cindex.py
+++ b/bindings/python/clang/cindex.py
@@ -1762,7 +1762,7 @@
         return self._as_parameter_
 
     def __del__(self):
-	lib.clang_disposeCodeCompleteResults(self)
+        lib.clang_disposeCodeCompleteResults(self)
 
     @property
     def results(self):