ChangeLog: Fix typo in date and ommitted PR number.

2017-07-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* ChangeLog: Fix typo in date and ommitted PR number.

From-SVN: r250474

libgfortran/ChangeLog

 2017-07-24  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
+	PR fortran/80365
 	* io/unix.c (buf_write):  Return early if there is
 	nothing to write.
 
-2017-06-09  Thomas Koenig  <tkoenig@gcc.gnu.org>
+2017-07-09  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	* intrinsics/eoshift2.c (eoshift2):  Use memcpy
 	for innermost copy where possible.