updated to remove TODO and credit danbell

lib/layouts.js

@@ -120,7 +120,16 @@ function messagePassThroughLayout (loggingEvent) {
 
 /**
  * PatternLayout
- *
+ * Format for specifiers is %[padding].[truncation][field]{[format]}
+ * e.g. %5.10p - left pad the log level by 5 characters, up to a max of 10
+ * Fields can be any of:
+ *  - %r time in toLocaleTimeString format
+ *  - %p log level
+ *  - %c log category
+ *  - %m log data
+ *  - %d date in various formats
+ *  - %% %
+ *  - %n newline
  * Takes a pattern string and returns a layout function.
  * @author Stephan Strittmatter
  */