sde-create-tree: made dash compatible

bin/sde-create-tree

@@ -3,7 +3,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: bin/sde-create-tree
-# Copyright (C) 2008 The OpenSDE Project
+# Copyright (C) 2008 - 2009 The OpenSDE Project
 #
 # More information can be found in the files COPYING and README.
 #
@@ -21,9 +21,9 @@
 . "$SDEROOT/lib/libsde.in"
 
 create_usage() {
-	local progname=${0##*/}
+	local progname=$(echo ${0##*/} | tr '-' ' ')
 
-	echo "Usage:	${progname//-/ } <dirname>"
+	echo "Usage:	$progname <dirname>"
 }
 
 create_origin()