diff -Nru hub-2.14.2~ds1/debian/changelog hub-2.14.2~ds1/debian/changelog
--- hub-2.14.2~ds1/debian/changelog	2021-02-18 09:23:57.000000000 +0000
+++ hub-2.14.2~ds1/debian/changelog	2021-05-08 12:03:40.000000000 +0000
@@ -1,3 +1,13 @@
+hub (2.14.2~ds1-1+rpi1) bullseye-staging; urgency=medium
+
+  * export LC_ALL=C.UTF-8 in debian/rules so that the manpage
+    build succeeds regardless of the locale set on the buildsystem.
+  * Fix clean target
+  * Add build-depends on moreutils for use of sponge in clean
+    target.
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Sat, 08 May 2021 12:03:40 +0000
+
 hub (2.14.2~ds1-1) unstable; urgency=medium
 
   * New upstream version 2.14.2 (Closes: #949637)
diff -Nru hub-2.14.2~ds1/debian/rules hub-2.14.2~ds1/debian/rules
--- hub-2.14.2~ds1/debian/rules	2021-02-18 09:21:25.000000000 +0000
+++ hub-2.14.2~ds1/debian/rules	2021-05-08 12:03:40.000000000 +0000
@@ -1,5 +1,6 @@
 #!/usr/bin/make -f
 
+export LC_ALL=C.UTF-8
 export DH_GOLANG_INSTALL_EXTRA := fixtures/
 
 %:
@@ -11,5 +12,11 @@
 	mv -v _build/bin/md2roff-bin bin/md2roff
 	$(MAKE) man-pages
 
+execute_after_dh_auto_clean:
+	rm -rf bin share/man/man1/hub-*.1.md share/man/.man-pages.stamp share/doc/
+	grep -v blackfriday/v2 go.mod | sponge go.mod
+	grep -v blackfriday/v2 go.sum | sponge go.sum
+	grep -v 'blackfriday v1.6.0' go.sum | sponge go.sum
+
 override_dh_auto_install:
 	dh_auto_install -- --no-source