question: public static void parseOptionSettingTo ( String optionSetting , Map < String , String > dst ) { int eqIndex = optionSetting . indexOf ( '=' ) ; if ( eqIndex == - 1 ) { throw new InternalError ( "Option setting has does not match the pattern <name>=<value>: " + optionSetting ) ; } dst . put ( optionSetting . substring ( 0 , eqIndex ) , optionSetting . substring ( eqIndex + 1 ) ) ; }
target:  Parses a given option setting string to a map of settings.