Update cron revision [CI SKIP]

.gopmfile

@@ -17,7 +17,7 @@ github.com/go-sql-driver/mysql = commit:0b58b37
 github.com/go-xorm/core = commit:bc1b7f8
 github.com/go-xorm/xorm = commit:b8b1711
 github.com/gogits/chardet = commit:2404f77
-github.com/gogits/cron = commit:96040e4
+github.com/gogits/cron = commit:7f3990a
 github.com/gogits/git-module = commit:18dd87d
 github.com/gogits/go-gogs-client = commit:d1020b4
 github.com/issue9/identicon = commit:d36b545

glide.lock

@@ -39,7 +39,7 @@ imports:
 - name: github.com/gogits/chardet
   version: 2404f777256163ea3eadb273dada5dcb037993c0
 - name: github.com/gogits/cron
-  version: 96040e4fab17baa0391ce571694e4ccb5fce5dac
+  version: 7f3990acf1833faa5ebd0e86f0a4c72a4b5eba3c
 - name: github.com/gogits/git-module
   version: 18dd87dc5eac9ee7076133c8363803f2192d5713
 - name: github.com/gogits/go-gogs-client