Index: trunk/psphot/src/psLine.c
===================================================================
--- trunk/psphot/src/psLine.c	(revision 4977)
+++ trunk/psphot/src/psLine.c	(revision 5980)
@@ -41,4 +41,5 @@
     Nchar = vsnprintf (&line->line[line->Nline], nMax, format, ap);
     line->Nline += PS_MIN (nMax - 1, Nchar);
+    va_end (ap);
 
     if (Nchar >= nMax) return (false);