When I try and add a date to an action in the GTDAlt bundle, I get the following error:

-- /usr/local/lib/ruby/1.8/date/format.rb:230:in /bin/bash: -c: line 1: unexpected EOF while looking for matching `'' /bin/bash: -c: line 3: syntax error: unexpected end of filestrftime' from /usr/local/lib/ruby/1.8/date/format.rb:201:in /bin/bash: -c: line 1: unexpected EOF while looking for matching `'' /bin/bash: -c: line 3: syntax error: unexpected end of filestrftime' from /usr/local/lib/ruby/1.8/date.rb:1343:in --

Any clues on how to sort this out?