[PATCH][SRU][E] UBUNTU: [Packaging] Update sphinx build dependencies to python3 packages

[Seth Forshee]

BugLink: https://bugs.launchpad.net/bugs/1845808

python2 is nearing eol and has been demoted to universe. Get rid
of our last build dependency on python2 by switching to the
python3 versions of the sphinx tools used for generating the html
documentation.

Signed-off-by: Seth Forshee <seth.forshee at canonical.com>
---
 debian.master/control.stub.in | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/debian.master/control.stub.in b/debian.master/control.stub.in
index 85a7d3412f40..1cece7c17e84 100644
--- a/debian.master/control.stub.in
+++ b/debian.master/control.stub.in
@@ -46,8 +46,8 @@ Build-Depends-Indep:
  bzip2 <!stage1>,
  sharutils <!stage1>,
  asciidoc <!stage1>,
- python-sphinx <!stage1>,
- python-sphinx-rtd-theme <!stage1>,
+ python3-sphinx <!stage1>,
+ python3-sphinx-rtd-theme <!stage1>,
  fontconfig <!stage1>,
  python3-docutils <!stage1>,
 Vcs-Git: git://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/=SERIES=
-- 
2.20.1