Change the break-trigger for IEx to #iex:break

Author: alco

lib/iex/lib/iex/helpers.ex

@@ -53,15 +53,15 @@ defmodule IEx.Helpers do
   incomplete expression with no ability to terminate it other than by exiting
   the shell.
 
-  For such cases, there is a special break-trigger ("#!break") that when
+  For such cases, there is a special break-trigger ("#iex:break") that when
   encountered on a line by itself will force the shell to break out of any
   pending expression and return to its normal state:
 
       iex(1)> ["ab
       ...(1)> c"
       ...(1)> "
       ...(1)> ]
-      ...(1)> #!break
+      ...(1)> #iex:break
       ** (TokenMissingError) iex:1: incomplete expression
           ...
 

lib/iex/lib/iex/server.ex

@@ -55,7 +55,7 @@ defmodule IEx.Server do
   # break out from a pending incomplete expression. See
   # https://github.com/elixir-lang/elixir/issues/1089 for discussion.
   #
-  @break_trigger '#!break\n'
+  @break_trigger '#iex:break\n'
   defp eval(_, @break_trigger, _, config=IEx.Config[cache: '']) do
     # do nothing
     config