[ruby-cvs:73500] svn:r66399 (trunk): * remove trailing spaces. [ci skip]

[svn at ruby-lang.org]

svn	2018-12-14 14:44:43 +0900 (Fri, 14 Dec 2018)

  New Revision: 66399

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=66399

  Log:
    * remove trailing spaces. [ci skip]

  Modified files:
    trunk/proc.c