Changes some << to to_chat

interface/interface.dm

@@ -78,7 +78,7 @@ Admin:
 	mob.hotkey_help()
 
 	if(holder)
-		src << adminhotkeys
+		to_chat(src, adminhotkeys)
 
 /client/verb/changelog()
 	set name = "Changelog"
@@ -168,8 +168,8 @@ Any-Mode: (hotkey doesn't need to be on)
 \tCtrl+Numpad = Body target selection (Press 8 repeatedly for Head->Eyes->Mouth)
 </font>"}
 
-	src << hotkey_mode
-	src << other
+	to_chat(src, hotkey_mode)
+	to_chat(src, other)
 
 /mob/living/silicon/robot/hotkey_help()
 	//h = talk-wheel has a nonsense tag in it because \th is an escape sequence in BYOND.
@@ -220,8 +220,8 @@ Any-Mode: (hotkey doesn't need to be on)
 \tPGDN = activate held object
 </font>"}
 
-	src << hotkey_mode
-	src << other
+	to_chat(src, hotkey_mode)
+	to_chat(src, other)
 
 // Needed to circumvent a bug where .winset does not work when used on the window.on-size event in skins.
 // Used by /datum/html_interface/nanotrasen (code/modules/html_interface/nanotrasen/nanotrasen.dm)