2017-03-14 tuned;
wenzelm [Tue, 14 Mar 2017 21:24:33 +0100] rev 65242
tuned;
2017-03-14 prefer local variables;
wenzelm [Tue, 14 Mar 2017 21:14:57 +0100] rev 65241
prefer local variables;
2017-03-14 clarified modules;
wenzelm [Tue, 14 Mar 2017 21:11:04 +0100] rev 65240
clarified modules;
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