profiles: clarify and add opengl-game to profile.template (#6300)

To make it consistent with the other include profiles.

See etc/templates/profile.template.

With this, all `etc/inc/allow-*` files are listed in profile.template.

The explanation is based on a comment by @rusty-snake[1].

Relates to #4071.

This is a follow-up to #6299.

[1] https://github.com/netblue30/firejail/pull/4071#issuecomment-822003473

1 files changed, 6 insertions, 0 deletions

diff --git a/etc/inc/allow-opengl-game.inc b/etc/inc/allow-opengl-game.inc
index 5d2d6c5c1..5ec227348 100644
--- a/etc/inc/allow-opengl-game.inc
+++ b/etc/inc/allow-opengl-game.inc
@@ -2,6 +2,12 @@
 # Persistent customizations should go in a .local file.
 include allow-opengl-game.local
 
+# Explanation: Fedora (and maybe others) install a .desktop file that uses
+# `Exec=foo-wrapper` instead of `Exec=foo`.  Each /usr/bin/foo-wrapper is a
+# symlink to /usr/bin/opengl-game-wrapper.sh, which checks hardware
+# acceleration and then starts the game or notifies the user that there is a
+# problem.
+
 noblacklist ${PATH}/bash
 whitelist /usr/share/opengl-games-utils/opengl-game-functions.sh
 private-bin basename,bash,cut,glxinfo,grep,head,sed,zenity