return empty string, instead of NULL, for empty lists of plugins

diff --git a/lib/gvc/gvplugin.c b/lib/gvc/gvplugin.c
index 64a9ce02dad8a6fd1e8df304b277dbfed11be0a4..ee0d17c1c78273d4f10d9d39733212725c481f54 100644 (file)
--- a/lib/gvc/gvplugin.c
+++ b/lib/gvc/gvplugin.c
@@ -323,6 +323,8 @@ const char *gvplugin_list(GVC_t * gvc, api_t api, char *str)
        }
     }
     free(s);
+    if (!buf)
+       buf = "";
     return buf;
 }