Set the close-on-exec flag for file and pipe redirections.
diff --git a/ChangeLog b/ChangeLog
index 1afd9de..4e95699 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2020-01-20         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* run.c (openfile): Set the close-on-exec flag for file
+	and pipe redirections that aren't stdin/stdout/stderr.
+
 2020-01-06         Arnold D. Robbins     <arnold@skeeve.com>
 
 	Minor fixes.