[RFC PATCH pmg-api 2/3] pmgpolicy: mimic Net::Server::PreForkSimple's signal handlers in child

[Dominik Csapak <d.csapak@proxmox.com>]

In PreForkSimple's `run_child` method, some signal handlers are reset
that were copied over from the parent process. In pmgpolicy this method
gets overwritten and some handlers are overwritten like the default,
except SIGPIPE.

This shouldn't introduce any changes currently since it's set to IGNORE
in the parent already, but by mimicking the run_child behavior, we
protect against future changes when it might get set to something else
in the parent.

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
sending as RFC because i'm currently not sure if it makes a difference
at all, but it seems like the correct approach, considering it's what
PreForkSimple also does.

 src/bin/pmgpolicy | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/bin/pmgpolicy b/src/bin/pmgpolicy
index 31bffe7..e491d89 100755
--- a/src/bin/pmgpolicy
+++ b/src/bin/pmgpolicy
@@ -1003,6 +1003,7 @@ sub run_child {
     };
 
     $SIG{'CHLD'} = 'DEFAULT';
+    $SIG{'PIPE'} = 'IGNORE';
 
     delete $prop->{children};
 
-- 
2.47.3