Cleanup xmalloc.

* admin/coccinelle/xzalloc.cocci: Semantic patch to convert
calls to xmalloc with following memset to xzalloc.
* src/lisp.h (xzalloc): New prototype.  Omit needless casts.
* src/alloc.c (xzalloc): New function.  Omit needless casts.
* src/charset.c: Omit needless casts.  Convert all calls to
malloc with following memset to xzalloc.
* src/dispnew.c: Likewise.
* src/fringe.c: Likewise.
* src/image.c: Likewise.
* src/sound.c: Likewise.
* src/term.c: Likewise.
* src/w32fns.c: Likewise.
* src/w32font.c: Likewise.
* src/w32term.c: Likewise.
* src/xfaces.c: Likewise.
* src/xfns.c: Likewise.
* src/xterm.c: Likewise.
* src/atimer.c: Omit needless casts.
* src/buffer.c: Likewise.
* src/callproc.c: Likewise.
* src/ccl.c: Likewise.
* src/coding.c: Likewise.
* src/composite.c: Likewise.
* src/doc.c: Likewise.
* src/doprnt.c: Likewise.
* src/editfns.c: Likewise.
* src/emacs.c: Likewise.
* src/eval.c: Likewise.
* src/filelock.c: Likewise.
* src/fns.c: Likewise.
* src/gtkutil.c: Likewise.
* src/keyboard.c: Likewise.
* src/lisp.h: Likewise.
* src/lread.c: Likewise.
* src/minibuf.c: Likewise.
* src/msdos.c: Likewise.
* src/print.c: Likewise.
* src/process.c: Likewise.
* src/region-cache.c: Likewise.
* src/search.c: Likewise.
* src/sysdep.c: Likewise.
* src/termcap.c: Likewise.
* src/terminal.c: Likewise.
* src/tparam.c: Likewise.
* src/w16select.c: Likewise.
* src/w32.c: Likewise.
* src/w32reg.c: Likewise.
* src/w32select.c: Likewise.
* src/w32uniscribe.c: Likewise.
* src/widget.c: Likewise.
* src/xdisp.c: Likewise.
* src/xmenu.c: Likewise.
* src/xrdb.c: Likewise.
* src/xselect.c: Likewise.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/widget.c b/src/widget.c
index 0cb1013b971..e219c200e00 100644
--- a/src/widget.c
+++ b/src/widget.c
@@ -435,7 +435,7 @@ set_frame_size (EmacsFrame ew)
                  flags & XNegative ? '-' : '+', x < 0 ? -x : x,
                  flags & YNegative ? '-' : '+', y < 0 ? -y : y);
         len = strlen (shell_position) + 1;
-        tem = (char *) xmalloc (len);
+        tem = xmalloc (len);
         strncpy (tem, shell_position, len);
         XtVaSetValues (wmshell, XtNgeometry, tem, NULL);
       }
@@ -445,7 +445,7 @@ set_frame_size (EmacsFrame ew)
         char *tem;
         sprintf (shell_position, "=%dx%d", pixel_width, pixel_height);
         len = strlen (shell_position) + 1;
-        tem = (char *) xmalloc (len);
+        tem = xmalloc (len);
         strncpy (tem, shell_position, len);
         XtVaSetValues (wmshell, XtNgeometry, tem, NULL);
       }