fixed small bug

lang/cem/cpp.ansi/domacro.c

@@ -639,6 +639,7 @@ get_text(formals, length)
 	c = GetChar();
 
 	repl->r_ptr = repl->r_text = Malloc(repl->r_size = ITEXTSIZE);
+	*repl->r_ptr = '\0';
 	while ((c != EOI) && (class(c) != STNL)) {
 		if (BLANK(c)) {
 			if (!blank++) add2repl(repl, ' ');

lang/cem/cpp.ansi/replace.c

@@ -537,6 +537,7 @@ macro2buffer(repl, idf, args)
 	int err = 0;
 	char *stringify();
 
+	assert(ptr[idf->id_macro->mc_length] == '\0');
 	while (*ptr) {
 	    if (*ptr == '\'' || *ptr == '"') {
 		register int delim = *ptr;