Use fn/1,2 instead of fn/{1,2} everywhere

doc/src/guide/parsers.asciidoc

@@ -21,7 +21,7 @@ will only cover the first two.
 Text protocols are generally line based. This means that we can't
 do anything with them until we receive the full line.
 
-A simple way to get a full line is to use `binary:split/{2,3}`.
+A simple way to get a full line is to use `binary:split/2,3`.
 
 .Using binary:split/2 to get a line of input
 

doc/src/guide/protocols.asciidoc

@@ -14,7 +14,7 @@ the call to `ranch:start_listener/5`. This callback must
 return `{ok, Pid}`, with `Pid` the pid of the new process.
 
 The newly started process can then freely initialize itself. However,
-it must call `ranch:handshake/{1,2}` before doing any socket operation.
+it must call `ranch:handshake/1,2` before doing any socket operation.
 This will ensure the connection process is the owner of the socket.
 It expects the listener's name as argument.
 
@@ -25,7 +25,7 @@ It expects the listener's name as argument.
 
 If your protocol code requires specific socket options, you should
 set them while initializing your connection process, after
-calling `ranch:handshake/{1,2}`. You can use `Transport:setopts/2`
+calling `ranch:handshake/1,2`. You can use `Transport:setopts/2`
 for that purpose.
 
 Following is the complete protocol code for the example found
@@ -64,7 +64,7 @@ loop(Socket, Transport) ->
 Special processes like the ones that use the `gen_statem` or `gen_server`
 behaviours have the particularity of having their `start_link` call not
 return until the `init` function returns. This is problematic, because
-you won't be able to call `ranch:handshake/{1,2}` from the `init` callback
+you won't be able to call `ranch:handshake/1,2` from the `init` callback
 as this would cause a deadlock to happen.
 
 Use the `gen_statem:enter_loop/4` function. It allows you to start your process

test/acceptor_SUITE.erl

@@ -582,11 +582,11 @@ ssl_getstat_capability(_) ->
 		{ok, Vsn} when Vsn>="8.0" ->
 			do_ssl_getstat_capability();
 		_ ->
-			{skip, "No getstat/{1,2} support."}
+			{skip, "No getstat/1,2 support."}
 	end.
 
 do_ssl_getstat_capability() ->
-	doc("Ensure getstat/{1,2} capability."),
+	doc("Ensure getstat/1,2 capability."),
 	Name=name(),
 	Opts=ct_helper:get_certs_from_ets(),
 	{ok, _} = ranch:start_listener(Name,
@@ -896,7 +896,7 @@ tcp_getopts_capability(_) ->
 	ok.
 
 tcp_getstat_capability(_) ->
-	doc("Ensure getstat/{1,2} capability."),
+	doc("Ensure getstat/1,2 capability."),
 	Name=name(),
 	{ok, _}=ranch:start_listener(Name,
 		ranch_tcp, #{},