From 984872ee518a074e3ffccdddbf8df1ee899ffe19 Mon Sep 17 00:00:00 2001
From: ivan <menshikh.iv@gmail.com>
Date: Wed, 20 Dec 2017 13:27:10 +0500
Subject: [PATCH] enable sudo for apt[2]

---
 .travis.yml | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 568ebcd2dd..e6ad7884a2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,4 @@
-sudo: true
+sudo: required
 
 cache:
   apt: true
@@ -26,8 +26,7 @@ matrix:
 
 before_install:
   - if [[ ${TOXENV} == *"docs"* ]]; then
-      sudo apt-get -yq update;
-      sudo apt-get -yq remove texlive-binaries --purge;
+      sudo apt-get -qq update;
       sudo apt-get -yq --no-install-suggests --no-install-recommends --force-yes install \
         dvipng texlive-latex-base texlive-latex-extra texlive-latex-recommended \
         texlive-latex-extra texlive-fonts-recommended latexmk;