Get warning "ignoring return value of 'write'..." when compiling v2.5.0.

[kfogel]

I built tag v2.5.0 today and got this warning:

prompt$ make
mkdir bin
cp scripts/keyd-application-mapper bin/
sed -e 's#@PREFIX@#/usr/local#' keyd.service.in > keyd.service
sed -e 's#@PREFIX@#/usr/local#' src/vkbd/usb-gadget.service.in > src/vkbd/usb-gadget.service
cc -DVERSION=\"v2.5.0\ \(f33dca8\)\" -I/usr/local/include -L/usr/local/lib -Wall -Wextra -Wno-unused -std=c11 -DSOCKET_PATH=\"/var/run/keyd.socket\" -DCONFIG_DIR=\"/etc/keyd\" -DDATA_DIR=\"/usr/local/share/keyd\" -D_FORTIFY_SOURCE=2 -D_DEFAULT_SOURCE -Werror=format-security  -O3  src/*.c src/vkbd/uinput.c -lpthread -o bin/keyd 
src/daemon.c: In function ‘add_listener’:
src/daemon.c:84:33: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   84 |                                 write(con, layer->type == LT_LAYOUT ? "/" : "+", 1);
      |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/daemon.c:85:33: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   85 |                                 write(con, layer->name, strlen(layer->name));
      |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/daemon.c:86:33: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   86 |                                 write(con, "\n", 1);
      |                                 ^~~~~~~~~~~~~~~~~~~
prompt$ 

Most places in the code use xwrite(). Is there a reason to use write() in these three places in src/daemon.c? I'd be happy to submit a PR to switch them to xwrite() to make the build warning go away, if you want, but I thought I'd check here first.