Created attachment 245684 [details] [review]
Add G_SPAWN_DEFAULT so g_spawn_*() can be called without using 0 if no flags required

Add G_SPAWN_DEFAULT to GSpawnFlags - there is no "no flags" value to use which makes the default use case of g_spawn_*() hard to read (lots of NULL and 0).

i.e.

g_spawn_sync (NULL, argv, NULL, 0, NULL, NULL, NULL, NULL, &exit_status, &error)

becomes

g_spawn_sync (NULL, argv, NULL, G_SPAWN_DEFAULT, NULL, NULL, NULL, NULL, &exit_status, &error);

This is also nicer in non C languages where, i.e. in Vala:

Process.spawn_sync (null, argv, SpawnFlags.DEFAULT, null, null, null, out exit_status);