Was introduced with commit 73f336a, which removed a functionality from
ledger.el old ledger mode.  I maintain a branch locally to always
restore C-x C-s keyboard shortcut that is so deeply inside my Emacs
muscle memory. I propose to restore this definitely.
Merge pull request #304 from thdox/save-in-reconcile-buffer

Restore C-x C-s keyboard shortcut in reconcile buffer