fix wrong exception
fix wrong exception

xflash96/gitolite-sshkey-form,yongjhih/gitlolite-sshkey,yongjhih/gitlolite-sshkey,xflash96/gitolite-sshkey-form,yongjhih/gitlolite-sshkey,xflash96/gitolite-sshkey-form,xflash96/gitolite-sshkey-form