fix typo in ethr_aux.c

Hi,


It seems there is a typo in file ethr_aux.c,  function ts_event_pool(int size, ethr_ts_event **endpp) tries to
allocate memory at cache line boundary, but the code wrongly detects it, please see attachments,
further, you only needs to allocate extra cache_line_size -1 bytes but not full cache line, because most bytes
you should skip is cache_line_size - 1, patch file ethr_aux.c.diff2 fixed it.


Regards,
Yifeng Xu

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--- erts\lib_src\common\ethr_aux.c.old	2014-04-08 02:31:32 +0800
+++ erts\lib_src\common\ethr_aux.c	2014-06-04 09:01:34 +0800
@@ -363,7 +363,7 @@
 				 + ETHR_CACHE_LINE_SIZE);
     if (!atsev)
 	return NULL;
-    if ((((ethr_uint_t) atsev) & ETHR_CACHE_LINE_MASK) == 0)
+    if ((((ethr_uint_t) atsev) & ETHR_CACHE_LINE_MASK) != 0)
 	atsev = ((ethr_aligned_ts_event *)
 		 ((((ethr_uint_t) atsev) & ~ETHR_CACHE_LINE_MASK)
 		  + ETHR_CACHE_LINE_SIZE));