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-rw-r--r--src/include/taler_util.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/include/taler_util.h b/src/include/taler_util.h
index d2ff78715..d8d1a5638 100644
--- a/src/include/taler_util.h
+++ b/src/include/taler_util.h
@@ -416,8 +416,9 @@ TALER_mhd_is_https (struct MHD_Connection *connection);
* that a NULL value does not terminate the list, only a NULL key signals the
* end of the list of arguments.
*
- * @param base_url absolute base URL to use
- * @param path path of the url
+ * @param base_url absolute base URL to use, must either
+ * end with '/' *or* @a path must be the empty string
+ * @param path path of the url to append to the @a base_url
* @param ... NULL-terminated key-value pairs (char *) for query parameters,
* only the value will be url-encoded
* @returns the URL, must be freed with #GNUNET_free