[doc] [R] clarify lintr docs (dmlc#10698)

jameslamb · web-flow · commit b457d0d79224 · 2024-08-13T14:37:31.000+08:00
diff --git a/doc/contrib/coding_guide.rst b/doc/contrib/coding_guide.rst
@@ -134,6 +134,7 @@ To run checks for R:
 .. code-block:: bash
 
   cd /path/to/xgboost/
+  R CMD INSTALL R-package/
   Rscript tests/ci_build/lint_r.R $(pwd)
 
 To run checks for cpplint locally:
