internal-fn.c (init_internal_fns): Fix off-by-one.

2014-08-12  Yury Gribov  <y.gribov@samsung.com>
    
gcc/
	* internal-fn.c (init_internal_fns): Fix off-by-one.

From-SVN: r213848

gcc/ChangeLog

+2014-08-12  Yury Gribov  <y.gribov@samsung.com>
+
+	* internal-fn.c (init_internal_fns): Fix off-by-one.
+
 2014-08-12  Alexander Ivchenko  <alexander.ivchenko@intel.com>
 	    Maxim Kuznetsov  <maxim.kuznetsov@intel.com>
 	    Anna Tikhonova  <anna.tikhonova@intel.com>

gcc/internal-fn.c

@@ -62,7 +62,7 @@ init_internal_fns ()
 {
 #define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) \
   if (FNSPEC) internal_fn_fnspec_array[IFN_##CODE] = \
-    build_string ((int) sizeof (FNSPEC) + 1, FNSPEC ? FNSPEC : "");
+    build_string ((int) sizeof (FNSPEC), FNSPEC ? FNSPEC : "");
 #include "internal-fn.def"
 #undef DEF_INTERNAL_FN
   internal_fn_fnspec_array[IFN_LAST] = 0;