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-rw-r--r--Src/hist.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/Src/hist.c b/Src/hist.c
index c77b5dd9d..9d317c4b5 100644
--- a/Src/hist.c
+++ b/Src/hist.c
@@ -302,9 +302,13 @@ hist_context_restore(const struct hist_stack *hs, int toplevel)
 }
 
 /*
- * Mark that the current level of history is or is not
- * within a word, whatever turns up.  This is used for nested
+ * Mark that the current level of history is within a word whatever
+ * characters turn up, or turn that mode off.  This is used for nested
  * parsing of substitutions.
+ *
+ * The caller takes care only to turn this on or off at the start
+ * or end of recursive use of the same mode, so a single flag is
+ * good enough here.
  */
 
 /**/