upload to unstable

debian/changelog

-poppler (20.09.0-3.1) UNRELEASED; urgency=medium
+poppler (20.09.0-3.1) unstable; urgency=medium
 
   * debian/tests: make autopkgtests cross-test-friendly (Closes: #969726)
 
+  [ Gianfranco Costamagna ]
+  * add some optional symbols that appears/disappears when the source is
+    built with -O3
+
  -- Sebastien Bacher <seb128@ubuntu.com>  Thu, 21 Jan 2021 16:40:36 +0100
 
 poppler (20.09.0-3) unstable; urgency=medium