question: private static void init ( final String packageNameToCutOff ) { if ( doPackageCutOff = ! TextUtils . isEmpty ( packageNameToCutOff ) ) Log . packageNameToCutOff = packageNameToCutOff . lastIndexOf ( "." ) == packageNameToCutOff . length ( ) - 1 ? packageNameToCutOff : packageNameToCutOff + "." ; }
target:  do init for cutting off the app's package name to shorten the resulting Tag string length