diff --git a/CHANGELOG.md b/CHANGELOG.md
index c7f6213f..4452d678 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## 3.4.0 (Upcoming)
 
-* Clixon_backend now returns -1/255 on error instead of NULL. Useful for systemd restarts, for example.
+* Clixon_backend now returns -1/255 on error instead of 0. Useful for systemd restarts, for example.
 
 * Fixed bug that deletes running on startup if backup started with -m running.
   When clixon starts again, running is lost.
diff --git a/lib/src/clixon_xml.c b/lib/src/clixon_xml.c
index f5434155..e12eabdd 100644
--- a/lib/src/clixon_xml.c
+++ b/lib/src/clixon_xml.c
@@ -747,6 +747,15 @@ xml_rm(cxobj *xc)
  * @param[out] xcp  xml child node. New root
  * @retval     0    OK
  * @retval    -1    Error
+ * @code
+ *   cxobj *xt = NULL; 
+ *   if (xml_parse_string("<a>2</a>", NULL, &xt) < 0)
+ *      err;
+ *  # Here xt will be: <top><a>2</a></top>
+ *   if (xml_rootchild(xt, 0, &xt) < 0)
+ *      err;
+ *  # Here xt will be: <a>2</a>
+ * @endcode
  * @see xml_child_rm
  */
 int
@@ -1057,6 +1066,7 @@ xml_print(FILE  *f,
  * cb = cbuf_new();
  * if (clicon_xml2cbuf(cb, xn, 0, 1) < 0)
  *   goto err;
+ * fprintf(stderr, "%s", cbuf_get(cb));
  * cbuf_free(cb);
  * @endcode
  * @see  clicon_xml2file
@@ -1341,7 +1351,8 @@ xml_parse_file(int        fd,
  * @endcode
  * @see xml_parse_file
  * @see xml_parse_va
- * @note  you need to free the xml parse tree after use, using xml_free()
+ * @note You need to free the xml parse tree after use, using xml_free()
+ * @note If empty on entry, a new TOP xml will be created named "top"
  */
 int 
 xml_parse_string(const char *str, 
diff --git a/lib/src/clixon_xsl.c b/lib/src/clixon_xsl.c
index e33cecc1..1d140440 100644
--- a/lib/src/clixon_xsl.c
+++ b/lib/src/clixon_xsl.c
@@ -1030,7 +1030,7 @@ xpath_each(cxobj *xcur,
  * @retval     -1      error.
  *
  * @code
- *   cxobj **xvec;
+ *   cxobj **xvec = NULL;
  *   size_t  xlen;
  *   if (xpath_vec(xcur, "//symbol/foo", &xvec, &xlen) < 0) 
  *      goto err;