* m4, lib: Update from Gnulib.
* msdos/sedlibmk.inp: Remove variables deleted as part of previous
change.
* admin/merge-gnulib (GNULIB_MODULES): Remove vasprintf and
printf-posix.
* java/org/gnu/emacs/EmacsNative.java: Declare ftruncate.
* java/org/gnu/emacs/EmacsSafThread.java (openDocument1): If
initially opening with rwt, verify the file descriptor is really
writable; if not, resort to rw and truncating the file descriptor
by hand instead.
* src/androidvfs.c (NATIVE_NAME (ftruncate)): New function.
Truncate file descriptor and return whether that was successful.
