Fix issues with va_lists

Identified by clangsa.

cde/lib/DtSvc/DtEncap/spc-util.c

@@ -200,6 +200,7 @@ int sprintf_len (XeString s, XeString format, ...)
   va_start(ap, format);
   if (s) *s = XeChar_NULL;
   vsprintf(s, format, ap);
+  va_end(ap);
   return(strlen(s));
 }
 

cde/lib/tt/lib/util/tt_audit.C

@@ -292,8 +292,6 @@ entry(const char *argskey, _Tt_entry_pt func, ...)
 		break;
 	}
 
-	va_start(ap, func);
-
 	// paramater checking for NULL & cascaded errors, over-long
 	// propnames, etc.
 	preview = argskey;