BUG: Fixed typo in previous commit of kwsys/CPU.h.in

Source/kwsys/CPU.h.in

@@ -30,7 +30,7 @@
 
 /* Alpha */
 #elif defined(__alpha) || defined(__alpha__) || defined(_M_ALPHA)
-# define @KWSYS_NAMESPACE@_CPU_ENDIAN_ID @KWSYS_NAMESPACE@_CPU_ENDIAN_ID_LITTLE__
+# define @KWSYS_NAMESPACE@_CPU_ENDIAN_ID @KWSYS_NAMESPACE@_CPU_ENDIAN_ID_LITTLE
 
 /* Intel x86 */
 #elif defined(__i386) || defined(__i386__) || defined(_M_IX86)