Use default date in gemspec
Use default date in gemspec

As suggested by Mr. da Salva. Cleaning up my copy pasta.

Change-Id: I6fd7c5064a3305add5e36bb1227a9b421cade4cf
Reviewed-on: https://gerrit.causes.com/22320
Tested-by: Aiden Scandella <1faf1e8390cdac9204f160c35828cc423b7acd7b@causes.com>
Reviewed-by: Shane da Silva <6f6e68d1df92f30cb4b3ce35260ddf94a402f33d@causes.com>

oxocode/overcommit,TheSooth/overcommit,gnagel/overcommit,blech75/overcommit,oxocode/overcommit,blech75/overcommit,gnagel/overcommit,TheSooth/overcommit