Fix typo and tweak env var docs

Change-Id: I78005b3fb4923ea4f81229640327d47e6c182303

diff --git a/docs/user-guide/environment-variables.rst b/docs/user-guide/environment-variables.rst
index ac78d8f0dc7c8c2c3687507aaaad2f8bd084475f..f95ea156634c7dfec0c2fe46482f4f6657e5d30a 100644 (file)
--- a/docs/user-guide/environment-variables.rst
+++ b/docs/user-guide/environment-variables.rst
@@ -351,9 +351,9 @@ Performance and Run Control
 ``MDRUN``
         the :ref:`gmx mdrun` command used by :ref:`gmx tune_pme`.
 
-``GMX_DISABLE DYNAMICPRUNING``
+``GMX_DISABLE_DYNAMICPRUNING``
         disables dynamic pair-list pruning. Note that :ref:`gmx mdrun` will
-        still tune nstlist to the optimal value with dynamic pruning. Thus
+        still tune nstlist to the optimal value picked assuming dynamic pruning. Thus
         for good performance the -nstlist option should be used.
 
 ``GMX_NSTLIST_DYNAMICPRUNING``