Better fix, remove unneeded closecode variable and update bug credit.

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4419 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

src/files.c

@@ -515,7 +515,7 @@ void read_file(FILE *f, int fd, const char *filename, bool undoable)
 	nperror(filename);
     fclose(f);
     if (fd > 0) {
-	int closecode = close(fd);
+	close(fd);
 	writable = is_file_writable(filename);
     }