Make the child source test work
Make the child source test work

On my machine, this test was failing, because the timeout source
for quitting the inner mainloop was triggering repeatedly. Avoid
that by explicitly returning G_SOURCE_REMOVE from the callback.

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