[libc++] NFC: Normalize `#endif //` comment indentation

GitOrigin-RevId: 4cd6ca102a94e1b64ba3f940cc26b4d7b2b82964
diff --git a/include/fstream b/include/fstream
index 9129365..5006923 100644
--- a/include/fstream
+++ b/include/fstream
@@ -393,7 +393,7 @@
     return *this;
 }
 
-#endif  // _LIBCPP_CXX03_LANG
+#endif // _LIBCPP_CXX03_LANG
 
 template <class _CharT, class _Traits>
 basic_filebuf<_CharT, _Traits>::~basic_filebuf()
@@ -401,14 +401,14 @@
 #ifndef _LIBCPP_NO_EXCEPTIONS
     try
     {
-#endif  // _LIBCPP_NO_EXCEPTIONS
+#endif // _LIBCPP_NO_EXCEPTIONS
         close();
 #ifndef _LIBCPP_NO_EXCEPTIONS
     }
     catch (...)
     {
     }
-#endif  // _LIBCPP_NO_EXCEPTIONS
+#endif // _LIBCPP_NO_EXCEPTIONS
     if (__owns_eb_)
         delete [] __extbuf_;
     if (__owns_ib_)
@@ -1260,7 +1260,7 @@
     return *this;
 }
 
-#endif  // _LIBCPP_CXX03_LANG
+#endif // _LIBCPP_CXX03_LANG
 
 template <class _CharT, class _Traits>
 inline
@@ -1474,7 +1474,7 @@
     return *this;
 }
 
-#endif  // _LIBCPP_CXX03_LANG
+#endif // _LIBCPP_CXX03_LANG
 
 template <class _CharT, class _Traits>
 inline
@@ -1688,7 +1688,7 @@
     return *this;
 }
 
-#endif  // _LIBCPP_CXX03_LANG
+#endif // _LIBCPP_CXX03_LANG
 
 template <class _CharT, class _Traits>
 inline
@@ -1776,4 +1776,4 @@
 
 _LIBCPP_POP_MACROS
 
-#endif  // _LIBCPP_FSTREAM
+#endif // _LIBCPP_FSTREAM