[icu-design] Ticekt#8283 - MessageFormat#format(String format, Object[] arguments)

[<yos...@us...>]

We found we forgot to update the method signature of format method in 
com.ibm.icu.text.MessageFormat when we migrated to Java 5 as the minimum 
Java requirement in ICU4J 4.4.

In the current version, the format method is defined as below -

public static String format(String pattern,
                            Object[] arguments)

In JDK 5 or later versions, corresponding method is defined as -

public static String format(String pattern,
                            Object... arguments)

I'm going  to change the method signature to use varargs. Strictly 
speaking, this is not an API change, because varargs is rather a compiler 
feature and this change is binary compatible (existing code does not 
require recompilation).

If you have any objections, please respond.


-Yoshito