bug#46881: 28.0.50; pdumper dumping causes way too many syscalls

[Mattias Engdegård]

Any reason not to apply the patch from 
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=46881#20 right away? I've been 
using it locally for quite some time with very good results.

There seems to be a consensus for it, and while there may be even better 
solutions, having this in place now won't hurt.