travis: update dist to focal

Alex Hung · Ivanhu5866 · commit 62d1aadfe391 · 2020-07-13T09:59:13.000+08:00
Signed-off-by: Alex Hung &lt;alex.hung@canonical.com&gt;
Acked-by: Colin Ian King &lt;colin.king@canonical.com&gt;
Acked-by: Ivan Hu &lt;ivan.hu@canonical.com&gt;
diff --git a/.travis.yml b/.travis.yml
@@ -1,4 +1,4 @@
-dist: trusty
+dist: focal
 sudo: required
 
 before_install:

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-dist: trusty`
	`1`	`+dist: focal`
`2`	`2`	`sudo: required`
`3`	`3`
`4`	`4`	`before_install:`