usa	2015-07-03 18:08:16 +0900 (Fri, 03 Jul 2015)

  New Revision: 51120

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=51120

  Log:
    * lib/cmath.rb: shouldn't use non-ASCII characters in documentation.  as a
      custom, single quote is seen as the same as apostrophe in computer typography.
      [skip ci]

  Modified files:
    trunk/lib/cmath.rb
Index: lib/cmath.rb
===================================================================
--- lib/cmath.rb	(revision 51119)
+++ lib/cmath.rb	(revision 51120)
@@ -7,7 +7,7 @@ https://github.com/ruby/ruby/blob/trunk/lib/cmath.rb#L7
 #
 # Note that the selection of functions is similar, but not identical,
 # to that in module math. The reason for having two modules is that
-# some users aren interested in complex numbers, and perhaps don
+# some users aren't interested in complex numbers, and perhaps don't
 # even know what they are. They would rather have Math.sqrt(-1) raise
 # an exception than return a complex number.
 #

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