Fix "Invalid gemspec date format" problem

gistfile1.txt

(Insinde the gemspecs directory - $RUBYHOME/lib/ruby/gems/1.8/specifications)

Finding the problematics gemspecs:
grep -i *.gemspec -e '.*s\.date.*=.*%q{\(....-..-..\) \(.*Z\)}

Fixing the files:
sed -i -e 's/\(.*\)s\.date.*=.*%q{\(....-..-..\) \(.*Z\)}/\1s.date = %q\{\2}/p' ./*.gemspec