* src/newgrp.c, src/userdel.c, src/grpck.c, src/gpasswd.c,

src/newusers.c, src/pwconv.c, src/chpasswd.c, src/logoutd.c,
	src/chfn.c, src/groupmems.c, src/usermod.c, src/pwunconv.c,
	src/expiry.c, src/groupdel.c, src/chgpasswd.c, src/useradd.c,
	src/su.c, src/groupmod.c, src/passwd.c, src/pwck.c,
	src/groupadd.c, src/chage.c, src/login.c, src/grpconv.c,
	src/groups.c, src/grpunconv.c, src/chsh.c: Prog is now global (not
	static to the file) so that it can be used by the helper functions
	of libmisc.
	* lib/prototypes.h: Added extern char *Prog.
	* libmisc/find_new_gid.c, libmisc/find_new_uid.c: Indicate the
	program name with the warning.

src/expiry.c

@@ -40,6 +40,10 @@
 #include <sys/types.h>
 #include "defines.h"
 #include "prototypes.h"
+
+/* Global variables */
+char *Prog;
+
 /* local function prototypes */
 static RETSIGTYPE catch_signals (int);
 static void usage (void);
@@ -70,9 +74,9 @@ static void usage (void)
 int main (int argc, char **argv)
 {
 	struct passwd *pwd;
-
 	struct spwd *spwd;
-	char *Prog = Basename (argv[0]);
+
+	Prog = Basename (argv[0]);
 
 	sanitize_env ();