[ruby-cvs:61735] nobu:r54573 (trunk): process.c: prefer rb_check_arity

[nobu at ruby-lang.org]

nobu	2016-04-14 13:41:47 +0900 (Thu, 14 Apr 2016)

  New Revision: 54573

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=54573

  Log:
    process.c: prefer rb_check_arity
    
    * process.c: use rb_check_arity instead of rb_scan_args for simple
      optional arguments.

  Modified files:
    trunk/process.c