tests/unix: Don't error immediately on timeout
tests/unix: Don't error immediately on timeout

On a heavily loaded system, it's possible that both our normal
condition *and* the timeout occurred.  In that case we can just ignore
the timeout.

While I did add a "sig_timeout" boolean, we don't need to add any
assertions around whether or not it was reached - the assertions
covering the non-timeout case are sufficient.  The sig_timeout boolean
is mainly for later debugging.

https://bugzilla.gnome.org/show_bug.cgi?id=700460

cosimoc/glib,gale320/glib,ieei/glib,lukasz-skalski/glib,cention-sany/glib,krichter722/glib,tamaskenez/glib,MathieuDuponchelle/glib,mzabaluev/glib,cention-sany/glib,gale320/glib,gale320/glib,cention-sany/glib,cosimoc/glib,johne53/MB3Glib,ieei/glib,johne53/MB3Glib,Distrotech/glib,cention-sany/glib,lukasz-skalski/glib,tchakabam/glib,gale320/glib,lukasz-skalski/glib,lukasz-skalski/glib,tamaskenez/glib,mzabaluev/glib,endlessm/glib,cosimoc/glib,Distrotech/glib,Distrotech/glib,johne53/MB3Glib,tamaskenez/glib,krichter722/glib,cention-sany/glib,Distrotech/glib,ieei/glib,tchakabam/glib,MathieuDuponchelle/glib,MathieuDuponchelle/glib,ieei/glib,krichter722/glib,lukasz-skalski/glib,krichter722/glib,ieei/glib,tamaskenez/glib,tchakabam/glib,johne53/MB3Glib,mzabaluev/glib,cosimoc/glib,MathieuDuponchelle/glib,krichter722/glib,endlessm/glib,tchakabam/glib,cosimoc/glib,gale320/glib,endlessm/glib,tchakabam/glib,johne53/MB3Glib,endlessm/glib,Distrotech/glib,mzabaluev/glib,johne53/MB3Glib,endlessm/glib,MathieuDuponchelle/glib,mzabaluev/glib,tamaskenez/glib