[Feature #679] Integer#to_s(:step=>3, :sep=>",") が欲しい


#1

Feature #679: Integer#to_s(:step=>3, :sep=>",") e$B$,M_$7$$e(B
http://redmine.ruby-lang.org/issues/show/679

e$B5/I<<Te(B: Takeyuki F.
e$B%9%F!<%?%9e(B: Open, e$BM%@hEYe(B: Normal
e$B%+%F%4%je(B: core, Target version: 1.9.x

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12345678.to_s(:step=>3,:sep=>",") #=> 1,2345,678
12345678.to_s(:step=>4,:sep=>"") #=> 12345678
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e$B$3$A$i$O$$$+$,$G$7$g$&!)e(B