renaming expl to explanation in #amqp_error{}

Author: Vlad Ionescu

include/rabbit.hrl

@@ -67,7 +67,7 @@
 -record(ssl_socket, {tcp, ssl}).
 -record(delivery, {mandatory, immediate, txn, sender, message}).
 
--record(amqp_error, {name, expl, method = none}).
+-record(amqp_error, {name, explanation, method = none}).
 
 %%----------------------------------------------------------------------------
 
@@ -157,9 +157,9 @@
 -type(not_found() :: {'error', 'not_found'}).
 -type(routing_result() :: 'routed' | 'unroutable' | 'not_delivered').
 -type(amqp_error() ::
-      #amqp_error{name   :: atom(),
-                  expl   :: string(),
-                  method :: atom()}).
+      #amqp_error{name        :: atom(),
+                  explanation :: string(),
+                  method      :: atom()}).
 -endif.
 
 %%----------------------------------------------------------------------------

src/rabbit_misc.erl

@@ -148,7 +148,7 @@ frame_error(MethodName, BinaryFields) ->
 
 amqp_error(Name, ExplanationFormat, Params, Method) ->
     Explanation = lists:flatten(io_lib:format(ExplanationFormat, Params)),
-    #amqp_error{name = Name, expl = Explanation, method = Method}.
+    #amqp_error{name = Name, explanation = Explanation, method = Method}.
 
 protocol_error(Name, ExplanationFormat, Params) ->
     protocol_error(Name, ExplanationFormat, Params, none).

src/rabbit_reader.erl

@@ -792,7 +792,7 @@ map_exception(Channel, Reason) ->
     {ShouldClose, CloseChannel, CloseMethod}.
 
 lookup_amqp_exception(
-  #amqp_error{name = Name, expl = Expl, method = Method}) ->
+  #amqp_error{name = Name, explanation = Expl, method = Method}) ->
     {ShouldClose, Code, Text} = rabbit_framing:lookup_amqp_exception(Name),
     ExplBin = list_to_binary(Expl),
     CompleteTextBin = <<Text/binary, " - ", ExplBin/binary>>,