Document keymap_autorun in settingtypes.txt and minetest.conf.example (#4486)

builtin/settingtypes.txt

@@ -176,6 +176,10 @@ keymap_fastmove (Fast key) key KEY_KEY_J
 #    See http://irrlicht.sourceforge.net/docu/namespaceirr.html#a54da2a0e231901735e3da1b0edf72eb3
 keymap_noclip (Noclip key) key KEY_KEY_H
 
+#    Key for toggling autorun.
+#    See http://irrlicht.sourceforge.net/docu/namespaceirr.html#a54da2a0e231901735e3da1b0edf72eb3
+keymap_autorun (Autorun key) key
+
 #    Key for toggling cinematic mode.
 #    See http://irrlicht.sourceforge.net/docu/namespaceirr.html#a54da2a0e231901735e3da1b0edf72eb3
 keymap_cinematic (Cinematic mode key) key

minetest.conf.example

@@ -173,6 +173,11 @@
 #    type: key
 # keymap_noclip = KEY_KEY_H
 
+#    Key for toggling autorun.
+#    See http://irrlicht.sourceforge.net/docu/namespaceirr.html#a54da2a0e231901735e3da1b0edf72eb3
+#    type: key
+# keymap_autorun =
+
 #    Key for toggling cinematic mode.
 #    See http://irrlicht.sourceforge.net/docu/namespaceirr.html#a54da2a0e231901735e3da1b0edf72eb3
 #    type: key

src/settings_translation_file.cpp

@@ -71,6 +71,8 @@ fake_function() {
 	gettext("Key for toggling fast mode.\nSee http://irrlicht.sourceforge.net/docu/namespaceirr.html#a54da2a0e231901735e3da1b0edf72eb3");
 	gettext("Noclip key");
 	gettext("Key for toggling noclip mode.\nSee http://irrlicht.sourceforge.net/docu/namespaceirr.html#a54da2a0e231901735e3da1b0edf72eb3");
+	gettext("Autorun key");
+	gettext("Key for toggling autorun.\nSee http://irrlicht.sourceforge.net/docu/namespaceirr.html#a54da2a0e231901735e3da1b0edf72eb3");
 	gettext("Cinematic mode key");
 	gettext("Key for toggling cinematic mode.\nSee http://irrlicht.sourceforge.net/docu/namespaceirr.html#a54da2a0e231901735e3da1b0edf72eb3");
 	gettext("Minimap key");