fixed example LAMMPS SM

[ilia-nikiforov-umn]

Fixes issue #89

[codecov-commenter]

Codecov Report

Patch coverage has no change and project coverage change: +0.28% 🎉

Comparison is base (378406f) 45.29% compared to head (110a6ed) 45.58%.

❗ Current head 110a6ed differs from pull request most recent head 2ef1a79. Consider uploading reports for the commit 2ef1a79 to get more accurate results

❗ Your organization is not using the GitHub App Integration. As a result you may experience degraded service beginning May 15th. Please install the Github App Integration for your organization. Read more.

Additional details and impacted files

@@            Coverage Diff             @@
##            devel      #90      +/-   ##
==========================================
+ Coverage   45.29%   45.58%   +0.28%     
==========================================
  Files         140      140              
  Lines       13059    13154      +95     
  Branches     1338     1341       +3     
==========================================
+ Hits         5915     5996      +81     
- Misses       6476     6486      +10     
- Partials      668      672       +4     

see 19 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[yannick-couzinie]

Was writing some tests with this SM here and can confirm that this fix was needed to make the tests work, thank you for saving me some time!