MSVC compiler support [patch 21]: glob_match ctor

[Michael Goffioul]

MSVC reports an error because it cannot differentiate glob_match()
constructor with no argument given

Index: liboctave/glob-match.h
===================================================================
RCS file: /cvs/octave/liboctave/glob-match.h,v
retrieving revision 1.4
diff -p -c -r1.4 glob-match.h
*** liboctave/glob-match.h      26 Apr 2005 19:24:29 -0000      1.4
--- liboctave/glob-match.h      17 Oct 2006 11:07:41 -0000
*************** public:
*** 41,47 ****
        period = 4     // Leading `.' is matched only explicitly.
     };
  
!   glob_match (const std::string& p = std::string (),
              unsigned int f = pathname|noescape|period)
      : pat (p), flags (f) { }
  
--- 42,48 ----
        period = 4     // Leading `.' is matched only explicitly.
     };
  
!   glob_match (const std::string& p/* = std::string ()*/,
              unsigned int f = pathname|noescape|period)
      : pat (p), flags (f) { }