Remove all valid compiler warnings with gcc 4.x

Index: ppp/pppd/plugins/passprompt.c
===================================================================
--- ppp.orig/pppd/plugins/passprompt.c	2009-04-14 17:52:47.000000000 +0200
+++ ppp/pppd/plugins/passprompt.c	2009-04-14 17:52:57.000000000 +0200
@@ -50,7 +50,7 @@ static int promptpass(char *user, char *
     }
     if (!kid) {
 	/* we are the child, exec the program */
-	char *argv[4], fdstr[32];
+	char *argv[5], fdstr[32];
 	sys_close();
 	closelog();
 	close(p[0]);
Index: ppp/chat/chat.c
===================================================================
--- ppp.orig/chat/chat.c	2009-04-14 17:56:27.000000000 +0200
+++ ppp/chat/chat.c	2009-04-14 17:56:36.000000000 +0200
@@ -1303,7 +1303,7 @@ register char *s;
 
     if (verbose) {
 	if (quiet)
-	    msgf("send (??????)");
+	    msgf("send (??????" ")");
 	else
 	    msgf("send (%v)", s);
     }