Phillip Wood <phillip.wood@xxxxxxxxxxxx> writes: > From: Phillip Wood <phillip.wood@xxxxxxxxxxxxx> > > As explained in commit 06f46f237 (avoid "write_in_full(fd, buf, len) > != len" pattern, 2017–09–13) the return value of write_in_full() is > either -1 or the requested number of bytes. As such comparing the > return value to an unsigned value such as strbuf.len will fail to > catch errors. Change the code to use the preferred '< 0' check. Thanks, queued. This seems to have come from 9a5abfc7 ("After renaming a section, print any trailing variable definitions", 2009-07-24), which is rather ancient, but was made worse by getting duplicated by 52d59cc6 ("branch: add a --copy (-c) option to go with --move (-m)", 2017-06-18) recently.