To document shell options.

git-svn-id: https://tufte-latex.googlecode.com/svn/trunk@156 516e2f36-ce3a-0410-bea4-1d4a03f5df72

release

@@ -1,9 +1,9 @@
 #! /bin/bash
 
+# shell options: -o = on, +o = off
 set -o errexit # exit on first error
-set -o nounset # report undefined variables
-
-set +o xtrace # debugging
+set -o nounset # report unset variables
+set +o xtrace  # show commands
 
 PACKAGE="tufte-latex"