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+2021-09-09 Arnold D. Robbins <arnold@skeeve.com>
+
+ * gawktexi.in (Interval Expressions): Add some notes borrowed from
+ Paul Eggert in the grep documentation.
+
2021-08-26 Arnold D. Robbins <arnold@skeeve.com>
* gawktexi.in (Strong Regexp Constants): Document behavior