Really remove bad stuff from environment.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@947 ec53bebd-3082-4978-b11e-865c3cabbd6b

appl/telnet/telnetd/sys_term.c

@@ -1329,7 +1329,8 @@ static void scrub_env(void)
   for (cpp2 = cpp = environ; *cpp; cpp++) {
       for(p = remove; *p; p++)
 	  if(strncmp(*cpp, *p, strlen(*p)) == 0)
-	continue;
+	      break;
+      if(*p == NULL)
 	  *cpp2++ = *cpp;
   }
   *cpp2 = 0;