su_debuild: fix sid no stanford keyrin config

templates/etc/pbuilder/debian.erb

@@ -14,7 +14,7 @@
   # repositories. Currently, we want to include them if, and only if,
   # @include_stanford_keyring is true. So we simply set
   # include_stanford_repos equal to @include_stanford_keyring. Why have a
-  # separate variable that is exactlye the same as another variable?
+  # separate variable that is exactly the same as another variable?
   # Because we may want to de-couple the two variables in the future,
   # that's why.
   include_stanford_repos = @include_stanford_keyring

templates/etc/pbuilder/sid.erb

 # /etc/pbuilder/sid -- Debian override configuration file for pbuilder.
 
 MIRRORSITE=http://debian.stanford.edu/debian
+<%- if (@include_stanford_keyring) then -%>
 OTHERMIRROR="deb http://debian.stanford.edu/debian-stanford <%= @distribution %> main contrib non-free"
 OTHERMIRROR="$OTHERMIRROR |deb http://debian.stanford.edu/debian-local <%= @distribution %> main contrib non-free"
-<%- if (@include_stanford_keyring) then -%>
 EXTRAPACKAGES="aptitude debconf-utils debhelper gnupg stanford-keyring"
 <%- else -%>
 # Avoid the chicken-and-egg issue by not including stanford-keyring.