gpg: Prepare for globing with UTF-8.

* g10/gpg.c (_dowildcard): Remove.
(my_strusage): Enable wildcards using our new system.
--

This patch actually removes the current globing using a mingw
feature.  We are not able to use this because it does not handle
Unicode filenames.  The plan is to implement this in init.c.  This
patch merely configures gpg to request globing.

GnuPG-bug-id: 4398
(cherry picked from commit 8e15506d66)

g10/gpg.c

@@ -75,10 +75,6 @@
 #define MY_O_BINARY  0
 #endif
 
-#ifdef __MINGW32__
-int _dowildcard = -1;
-#endif
-
 enum cmd_and_opt_values
   {
     aNull = 0,
@@ -1135,6 +1131,10 @@ my_strusage( int level )
 	p = zips;
 	break;
 
+      case 95:
+        p = "1"; /* <-- Enable globbing under Windows (see init.c) */
+        break;
+
       default:	p = NULL;
     }
     return p;