Update tcell

Fixes #2081

Author: zyedidia

go.mod

@@ -17,7 +17,7 @@ require (
 	github.com/zyedidia/highlight v0.0.0-20170330143449-201131ce5cf5
 	github.com/zyedidia/json5 v0.0.0-20200102012142-2da050b1a98d
 	github.com/zyedidia/pty v2.0.0+incompatible // indirect
-	github.com/zyedidia/tcell/v2 v2.0.6
+	github.com/zyedidia/tcell/v2 v2.0.7
 	github.com/zyedidia/terminal v0.0.0-20180726154117-533c623e2415
 	golang.org/x/text v0.3.2
 	gopkg.in/sourcemap.v1 v1.0.5 // indirect

go.sum

@@ -60,6 +60,8 @@ github.com/zyedidia/pty v2.0.0+incompatible h1:Ou5vXL6tvjst+RV8sUFISbuKDnUJPhnpy
 github.com/zyedidia/pty v2.0.0+incompatible/go.mod h1:4y9l9yJZNxRa7GB/fB+mmDmGkG3CqmzLf4vUxGGotEA=
 github.com/zyedidia/tcell/v2 v2.0.6 h1:v0GoNpPYJ+Wbd1RiSL09SUFzoq4eVKTuT5awbW6aqGs=
 github.com/zyedidia/tcell/v2 v2.0.6/go.mod h1:i4NNlquIQXFeNecrOgxDQQJdu+7LmTi3g62asvmwUws=
+github.com/zyedidia/tcell/v2 v2.0.7 h1:kFzCRq9jgx5lOXBT8fVZidbTgVuX0ws++aMCj/MTCYY=
+github.com/zyedidia/tcell/v2 v2.0.7/go.mod h1:i4NNlquIQXFeNecrOgxDQQJdu+7LmTi3g62asvmwUws=
 github.com/zyedidia/terminal v0.0.0-20180726154117-533c623e2415 h1:752dTQ5OatJ9M5ULK2+9lor+nzyZz+LYDo3WGngg3Rc=
 github.com/zyedidia/terminal v0.0.0-20180726154117-533c623e2415/go.mod h1:8leT8G0Cm8NoJHdrrKHyR9MirWoF4YW7pZh06B6H+1E=
 golang.org/x/sys v0.0.0-20190204203706-41f3e6584952/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=