strv: make sure empty string lists result in a valid empty string in strv_join()

diff --git a/strv.c b/strv.c
index 25ea92c112c26e6170436e7b08dc71857dbc64f7..4cea86e04fcc427fad717599531ee718d771b356 100644 (file)
--- a/strv.c
+++ b/strv.c
@@ -281,6 +281,8 @@ char *strv_join(char **l, const char *separator) {
                 e = stpcpy(e, *s);
         }
 
+        *e = 0;
+
         return r;
 }