* fileio.c (internal_delete_file): Use bool for boolean.

src/ChangeLog

+2012-12-15  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* fileio.c (internal_delete_file): Use bool for boolean.
+
 2012-12-15  Eli Zaretskii  <eliz@gnu.org>
 
 	Fix bug #13079 on MS-Windows with temp files not being deleted.

src/fileio.c

@@ -2203,10 +2203,10 @@ internal_delete_file_1 (Lisp_Object ignore)
   return Qt;
 }
 
-/* Delete file FILENAME, returning 1 if successful and 0 if failed.
+/* Delete file FILENAME, returning true if successful.
    This ignores `delete-by-moving-to-trash'.  */
 
-int
+bool
 internal_delete_file (Lisp_Object filename)
 {
   Lisp_Object tem;

src/lisp.h

@@ -3199,7 +3199,7 @@ EXFUN (Fread_file_name, 6);     /* Not a normal DEFUN.  */
 extern Lisp_Object close_file_unwind (Lisp_Object);
 extern Lisp_Object restore_point_unwind (Lisp_Object);
 extern _Noreturn void report_file_error (const char *, Lisp_Object);
-extern int internal_delete_file (Lisp_Object);
+extern bool internal_delete_file (Lisp_Object);
 extern bool file_directory_p (const char *);
 extern bool file_accessible_directory_p (const char *);
 extern void syms_of_fileio (void);