fix spaces.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30495 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

io.c

@@ -10063,8 +10063,8 @@ argf_write(VALUE argf, VALUE str)
  */
 
 /*
-* Document-class: EOFError
-*
+ * Document-class: EOFError
+ *
  * Raised by some IO operations when reaching the end of file. Many IO
  * methods exist in two forms,
  *

string.c

@@ -4690,7 +4690,7 @@ rb_str_capitalize(VALUE str)
 
 /*
  *  call-seq:
-*     str.swapcase!   -> str or nil
+ *     str.swapcase!   -> str or nil
  *
  *  Equivalent to <code>String#swapcase</code>, but modifies the receiver in
  *  place, returning <i>str</i>, or <code>nil</code> if no changes were made.