public void info(String format, Object... argArray) {
        formatAndLog(Log.INFO, format, argArray);
    }
public void info ( String format , Object ... argArray ) { formatAndLog ( Log . INFO , format , argArray ) ; }
Log a message at level INFO according to the specified format and
arguments.
<p>
<p>
This form avoids superfluous object creation when the logger is disabled
for the INFO level.
</p>

@param format   the format string
@param argArray an array of arguments