Initialize the `lasts' to NULL before calling strtok_r the first time.

With our strtok_r it's not necessary, but the man-page on SGIs says it
should be done.


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1791 ec53bebd-3082-4978-b11e-865c3cabbd6b

appl/ftp/ftpd/popen.c

@@ -125,9 +125,11 @@ ftpd_popen(char *program, char *type, int do_stderr, int no_glob)
 		return (NULL);
 
 	/* break up string into pieces */
-	for (argc = 0, cp = program;; cp = NULL)
+	for (argc = 0, cp = program;; cp = NULL) {
+		foo = NULL;
 		if (!(argv[argc++] = strtok_r(cp, " \t\n", &foo)))
 			break;
+	}
 
 	gargv[0] = (char*)ftp_rooted(argv[0]);
 	/* glob each piece */

lib/sl/sl.c

@@ -157,7 +157,7 @@ sl_loop (SL_cmd *cmds, char *prompt)
 	    add_history(buf);
 	count = 0;
 	{
-	    char *foo;
+	    char *foo = NULL;
 	    char *p;
 
 	    for(p = strtok_r (buf, " \t", &foo);