* shared_info.h: Match shared_name declaration with below change.

* shared.cc (shared_name): Use incoming char * parameter instead of
	local static buffer.
	(open_shared): Accomodate new calling convention for shared_name.
	* exceptions.cc (events_init): Ditto.
	* sigproc.cc (getsem): Ditto.
	* syscalls.cc (login): Ditto.
	(logout): Ditto.
	(pututline): Ditto.

winsup/cygwin/shared_info.h

@@ -186,5 +186,5 @@ struct console_state
 };
 #endif
 
-char *__stdcall shared_name (const char *, int);
+char *__stdcall shared_name (char *, const char *, int);
 void *__stdcall open_shared (const char *name, int n, HANDLE &shared_h, DWORD size, shared_locations);