typo in isnanf.m4

[Bruno Haible]

2007-05-29  Bruno Haible  <address@hidden>

        * m4/isnanf.m4 (gl_FLOAT_EXPONENT_LOCATION): Fix typo in cross-
        compiling case.

*** m4/isnanf.m4        29 May 2007 12:50:20 -0000      1.4
--- m4/isnanf.m4        29 May 2007 22:50:33 -0000
***************
*** 1,4 ****
! # isnanf.m4 serial 3
  dnl Copyright (C) 2007 Free Software Foundation, Inc.
  dnl This file is free software; the Free Software Foundation
  dnl gives unlimited permission to copy and/or distribute it,
--- 1,4 ----
! # isnanf.m4 serial 4
  dnl Copyright (C) 2007 Free Software Foundation, Inc.
  dnl This file is free software; the Free Software Foundation
  dnl gives unlimited permission to copy and/or distribute it,
***************
*** 153,159 ****
          ],
          [gl_cv_cc_float_expbit0=`cat conftest.out`],
          [gl_cv_cc_float_expbit0="unknown"],
!         [gl_cv_cc_double_expbit0="word 0 bit 23"])
        rm -f conftest.out
      ])
    case "$gl_cv_cc_float_expbit0" in
--- 157,163 ----
          ],
          [gl_cv_cc_float_expbit0=`cat conftest.out`],
          [gl_cv_cc_float_expbit0="unknown"],
!         [gl_cv_cc_float_expbit0="word 0 bit 23"])
        rm -f conftest.out
      ])
    case "$gl_cv_cc_float_expbit0" in