Truncate sudoers file after editing

[squell]

CC #833

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 57.48%. Comparing base (4f93acb) to head (865a7d3). Report is 12 commits behind head on main.

:exclamation: Current head 865a7d3 differs from pull request most recent head 13e7dcc

Please upload reports for the commit 13e7dcc to get more accurate results.

Files	Patch %	Lines
src/visudo/mod.rs	0.00%	2 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #843      +/-   ##
==========================================
- Coverage   57.98%   57.48%   -0.50%     
==========================================
  Files          75       75              
  Lines       10560    10421     -139     
==========================================
- Hits         6123     5991     -132     
+ Misses       4437     4430       -7     

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