Fix up RET instructions in sysdeps/i386/fpu

sysdeps/i386/fpu/e_acosh.S

 /* ix87 specific implementation of arcsinh.
    Copyright (C) 1996, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.
 
@@ skipping 50 matching lines @@
         fmul    %st(1)                  // (x-1)^2 : x-1 : log(2)
         fadd    %st(1)                  // x-1+(x-1)^2 : x-1 : log(2)
         fadd    %st(1)                  // 2*(x-1)+(x-1)^2 : x-1 : log(2)
         fsqrt                           // sqrt(2*(x-1)+(x-1)^2) : x-1 : log(2)
         faddp                           // x-1+sqrt(2*(x-1)+(x-1)^2) : log(2)
         fcoml   MO(limit)
         fnstsw
         sahf
         ja      2f
         fyl2xp1                         // log1p(x-1+sqrt(2*(x-1)+(x-1)^2))
-        ret
+        NACLRET
 
 2:      faddl   MO(one)                 // x+sqrt(2*(x-1)+(x-1)^2) : log(2)
         fyl2x                           // log(x+sqrt(2*(x-1)+(x-1)^2))
-        ret
+        NACLRET
 
         // x > 2^28 => y = log(x) + log(2)
         .align ALIGNARG(4)
 3:      fyl2x                           // log(x)
         fldln2                          // log(2) : log(x)
         faddp                           // log(x)+log(2)
-        ret
+        NACLRET
 
         // 2^28 > x > 2 => y = log(2*x - 1/(x+sqrt(x*x-1)))
         .align ALIGNARG(4)
 4:      fld     %st                     // x : x : log(2)
         fadd    %st, %st(1)             // x : 2*x : log(2)
         fld     %st                     // x : x : 2*x : log(2)
         fmul    %st(1)                  // x^2 : x : 2*x : log(2)
         fsubl   MO(one)                 // x^2-1 : x : 2*x : log(2)
         fsqrt                           // sqrt(x^2-1) : x : 2*x : log(2)
         faddp                           // x+sqrt(x^2-1) : 2*x : log(2)
         fdivrl  MO(one)                 // 1/(x+sqrt(x^2-1)) : 2*x : log(2)
         fsubrp                          // 2*x+1/(x+sqrt(x^2)-1) : log(2)
         fyl2x                           // log(2*x+1/(x+sqrt(x^2-1)))
-        ret
+        NACLRET
 
         // x < 1 => NaN
         .align ALIGNARG(4)
 5:      fldz
         fdiv    %st, %st(0)
-        ret
+        NACLRET
 END(__ieee754_acosh)