This allows gamemode to leave the context and then enter it again, which
re-applies all system optimizations. It is useful in cases where another
program (like TLP) may override gamemode's optimizations.
This is exposed to users by the -R or --restart flags to gamemoded.
Attribute the contributions made by members of the community, but avoid
unweildy and inconsistent copyright notices at the top of each file.
Existing contributor copyright notices have been left as-is.
