lang/haskell: restore modified flag after flycheck

Dante quietly saves the current buffer (without triggering save hooks)
before invoking flycheck, unexpectedly leaving the buffer in an
unmodified state.

This is annoying if we depend on save hooks to do work on the
buffer (like reformatting), so we restore a (false) modified state.
This commit is contained in:
Henrik Lissner 2019-02-21 19:11:07 -05:00
parent afae6e4f1d
commit 499877fcff
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