Fix two problems with RUN-PROGRAM: Missing :WAIT keyword and cl_core.null_stream not being input/output

src/CHANGELOG

@@ -14,6 +14,10 @@ ECL 0.9l-p1:
 
  - In compiled files, externalize package objects using FIND-PACKAGE.
 
+ - In RUN-PROGRAM, there were two bugs: first, the keyword :WAIT was not defined
+   in the C core and caused an error when used; second, the input/output streams
+   were not properly arranged.
+
 ;;; Local Variables: ***
 ;;; mode:text ***
 ;;; fill-column:79 ***

src/c/file.d

@@ -2987,8 +2987,22 @@ init_file(void)
 	cl_object standard_output;
 	cl_object error_output;
 	cl_object standard;
+	cl_object null_stream;
 	cl_object x;
 
+	null_stream = cl_alloc_object(t_stream);
+	null_stream->stream.mode = (short)smm_io;
+	null_stream->stream.closed = 0;
+	null_stream->stream.file = NULL;
+	null_stream->stream.object0 = @'base-char';
+	null_stream->stream.object1 = make_constant_base_string("/dev/null");
+	null_stream->stream.int0 = 0;
+	null_stream->stream.int1 = 0;
+	null_stream->stream.char_stream_p = 1;
+	null_stream->stream.byte_size = 8;
+	null_stream->stream.signed_bytes = 0;
+	cl_core.null_stream = null_stream;
+
 	standard_input = cl_alloc_object(t_stream);
 	standard_input->stream.mode = (short)smm_input;
 	standard_input->stream.closed = 0;

src/c/main.d

@@ -331,7 +331,7 @@ cl_boot(int argc, char **argv)
 
 	cl_core.null_string = make_constant_base_string("");
 
-	cl_core.null_stream = @make_broadcast_stream(0);
+	cl_core.null_stream = Cnil; /* Filled in file.d */
 
 	cl_core.system_properties =
 	    cl__make_hash_table(@'equal', MAKE_FIXNUM(1024), /* size */