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-rw-r--r--Src/Zle/zle_refresh.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/Src/Zle/zle_refresh.c b/Src/Zle/zle_refresh.c
index 34cadb0eb..cabefe7e7 100644
--- a/Src/Zle/zle_refresh.c
+++ b/Src/Zle/zle_refresh.c
@@ -434,6 +434,11 @@ get_region_highlight(UNUSED(Param pm))
 }
 
 
+/*
+ * The parameter system requires the pm argument, but this
+ * may be NULL if called directly.
+ */
+
 /**/
 void
 set_region_highlight(UNUSED(Param pm), char **aval)