Fixes the first half of #839708.
* cvs-adjustroot: silently succeed for */CVS/Root entries which
already match the new value. Closes:#839708 (second half).
+ * cvs-adjustroot: reinvoke oursevles via "$0" rather than
+ our hardcoded name. Makes testing easier, etc.
+ * cgi-fcgi-interp: Handle QUERY_STRING not containing =. (Tony Finch.)
+ * Fix tiny typo in long description. Closes:#819746. (Luke Faraone.)
+ * Fix build repro by using gzip -n. Closes:#777300. (Chris Lamb.)
+
+ debian/rules file tidying:
+ * Drop seddery for libgmp3c2 C++ ABI transition.
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