don't use options from a previous filter when the new filter has no options.

diff --git a/gpsbabel/filter_vecs.cc b/gpsbabel/filter_vecs.cc
index fc60503bc9a5ce1837c1d55fb60ec864d323759f..a2709847b841bbd6b19b9b8e8f7e1ba3c286cf04 100644 (file)
--- a/gpsbabel/filter_vecs.cc
+++ b/gpsbabel/filter_vecs.cc
@@ -209,6 +209,8 @@ find_filter_vec(char* const vecname, char** opts)
           }
         }
       }
+    } else {
+      *opts = NULL;
     }
     if (opts && opts[0] && !found) {
       warning("'%s' is an unknown option to %s.\n", *opts, vec->name);