feat: Set -bb3 switch as default

README.md

@@ -254,6 +254,16 @@ archive, filenames and destinations.
 
 Use `{ scc: 'UTF-8' }` for special characters.
 
+### Log level
+
+The default log level (`-bb` switch) is set to:
+> 3 :show information about additional operations (Analyze, Replicate) for "Add"
+> / "Update" operations.
+It's a base feature of `node-7z` and is required for the `SevenZipStream#data` 
+event to work as expected. A diffrent value can be used but the output values
+from the stream will be impacted. In particular a log level of `0` will cause 
+the stream not to emit data correctly.
+
 ***
 With :heart: from [quentinrossetti](http://quentinrossetti.me/)
 

lib/references.js

@@ -47,7 +47,7 @@ export const swRepeating = {
  */
 export const swArgs = {
   ao: undefined, // Overwrite mode
-  bb: undefined, // Set output log level
+  bb: '3', // Set output log level
   bs: undefined, // Set output stream for output/error/progress
   o: undefined, // Set Output directory
   p: undefined, // Set Password