Add private/protected def to Ruby indenters

diakonos.conf

@@ -1001,7 +1001,7 @@ lang.ruby.indent.auto true
 lang.ruby.indent.roundup true
 #lang.ruby.indent.using_tabs true
 lang.ruby.tabsize 2
-lang.ruby.indent.indenters ^\s*(case|def|begin|ensure|when|else|ensure|for|while|until|elsif|if|class|module|rescue)\b|([{\[(]$|\{\s*\|[\w\s,]*\|\s*$)|\b(do)\b
+lang.ruby.indent.indenters ^\s*(case|(?:(?:private|protected) )?def|begin|ensure|when|else|ensure|for|while|until|elsif|if|class|module|rescue)\b|([{\[(]$|\{\s*\|[\w\s,]*\|\s*$)|\b(do)\b
 lang.ruby.indent.unindenters ^\s*(end|else|elsif|ensure|when|rescue)\b|(^\s*[\]})])
 lang.ruby.indent.preventers (\".+?[^\\]\")|('.+?[^\\]')|(`.+?[^\\]`)|(\/.+?[^\\]\/)|(^\s*#.*)|\S\s+if
 lang.ruby.indent.ignore ^\s*$