	* StringUtils.java (concat$V): Add initial 2 parameters, so we can 	catch calls with too few arguments. 	Also, use StringBuilder if JAVA5.
	* StringUtils.java (concat$V): Add initial 2 parameters, so we can
	catch calls with too few arguments.
	Also, use StringBuilder if JAVA5.


git-svn-id: a878c62e23c3cdd7109267dfd9bdff0ba03a0163@5514 1d09e943-a6e3-41c1-b8ec-f26b335f1fdb

maoueh/kawa-fork,maoueh/kawa-fork,maoueh/kawa-fork,maoueh/kawa-fork,maoueh/kawa-fork