Index: README.txt
==================================================================
--- README.txt
+++ README.txt
@@ -139,10 +139,14 @@
 		
 b. teapot-client / teapot-client.tcl:
 	i. teapot-client get <dir> <os> <cpu> <packages...>
 		Downloads all the requested extensions/packages for the OS+CPU
 		pair into the "lib" directory of the directory specified.
+
+		Specifying a package name that begins with a "!" (bang) will
+		indicate that the specified package does NOT need to be
+		fetched, even if it is depended on by some other package.
 
 	ii. teapot-client list ?<os>? ?<cpu>?
 		Lists all available extensions and their most recent versions,
 		optionally restricted to an OS+CPU pair.