patch 7.4.1499
Problem:    No error message when :packadd does not find anything.
Solution:   Add an error message. (Hirohito Higashi)
diff --git a/src/globals.h b/src/globals.h
index 6fd86fb..bd9ef5c 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -1577,6 +1577,7 @@
 #ifndef FEAT_CLIPBOARD
 EXTERN char_u e_invalidreg[]    INIT(= N_("E850: Invalid register name"));
 #endif
+EXTERN char_u e_dirnotf[]	INIT(= N_("E919: Directory not found in '%s': \"%s\""));
 
 #ifdef MACOS_X_UNIX
 EXTERN short disallow_gui	INIT(= FALSE);