weston-terminal: Ignore SIGPIPE

This ensures that the default signal action doesn't kill weston-terminal
when the terminal tries to paste into a pipe whose read end has already
been shut down. (For example, a pipe from a misconfigured program or from
one which crashes/exits before the terminal calls write().)

Signed-off-by: Manuel Stoeckl <code@mstoeckl.com>
5 jobs for master in 1 minute and 22 seconds (queued for 2 minutes and 38 seconds)
Status Job ID Name Coverage
  Container Prep
passed #528421
container_prep

00:00:18

 
  Build
passed #528422
build-native-meson

00:00:46

 
  Pages
passed #528423
pages

00:00:17

 
  Deploy
passed pages:deploy

00:00:02

failed pages:deploy

00:00:00