[Minor] mime_types: Add "text/plain" CT for "csv" extension

as some MUAs use it.

diff --git a/src/plugins/lua/mime_types.lua b/src/plugins/lua/mime_types.lua
index 206284a250f9febf093ce9d7ba6860924f4ab8e3..d53250510bdc0d246afc850544c550401f82a0b6 100644 (file)
--- a/src/plugins/lua/mime_types.lua
+++ b/src/plugins/lua/mime_types.lua
@@ -286,7 +286,7 @@ local full_extensions_map = {
   {"csh", "application/x-csh"},
   {"csproj", "text/plain"},
   {"css", "text/css"},
-  {"csv", "text/csv"},
+  {"csv", {"text/csv", "text/plain"}},
   {"cur", "application/octet-stream"},
   {"cxx", "text/plain"},
   {"dat", {"application/octet-stream", "application/ms-tnef"}},