patch for cons-2.3dev documentation typos

[David Sanderson]

Note that the use of C<'*'> results in `'*'' coming out, and the quotes
on the left of the asterisk are jarringly inconsistent with the quotes
on the right of the asterisk.

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*** cons0       Fri May 25 13:07:31 2001
--- cons        Fri Jul 20 16:11:24 2001
***************
*** 4668,4674 ****
  
    SourceSignature '*' => 'content';
  
! The C<'*'> will match all source files.  The C<content> keyword
  specifies that Cons will read the contents of a source file to calculate
  its signature each time it is run.
  
--- 4668,4674 ----
  
    SourceSignature '*' => 'content';
  
! The C<*> will match all source files.  The C<content> keyword
  specifies that Cons will read the contents of a source file to calculate
  its signature each time it is run.
  
***************
*** 5234,5240 ****
  
    % cons build
  
! should probably be avoided (since it will compile tests unecessarily).
  
  If you want to build just a single test, then you could explicitly name the
  test (in either the F<tests> directory or the F<build> directory). You could
--- 5234,5240 ----
  
    % cons build
  
! should probably be avoided (since it will compile tests unnecessarily).
  
  If you want to build just a single test, then you could explicitly name the
  test (in either the F<tests> directory or the F<build> directory). You could
***************
*** 6271,6277 ****
  =head2 The C<SourcePath> method
  
  The C<SourcePath> mathod returns the real source path name of a file,
! as opposted to the path name within a build directory.  It is invoked
  as follows:
  
    $path = SourcePath <buildpath>;
--- 6271,6277 ----
  =head2 The C<SourcePath> method
  
  The C<SourcePath> mathod returns the real source path name of a file,
! as opposed to the path name within a build directory.  It is invoked
  as follows:
  
    $path = SourcePath <buildpath>;
***************
*** 6682,6688 ****
  appear to be necessary.]
  
  Here is another way to build the same scanner. This one uses an
! explicit code reference, and also (unecessarily, in this case) reads
  the whole file itself:
  
    sub myscan {
--- 6682,6688 ----
  appear to be necessary.]
  
  Here is another way to build the same scanner. This one uses an
! explicit code reference, and also (unnecessarily, in this case) reads
  the whole file itself:
  
    sub myscan {
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