Update required version of Vim

Update the required vesion of Vim to be the version installed with
Ubuntu 20.04 LTS.

.github/workflows/git.yml

@@ -3,7 +3,7 @@ on: [pull_request]
 
 jobs:
   autosquash-commits-integrated:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
 
     steps:
     - uses: actions/checkout@v2.0.0

.github/workflows/test.yml

@@ -3,7 +3,7 @@ on: [push, pull_request]
 jobs:
   lint:
     name: lint
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
     - name: set up python
       uses: actions/setup-python@v2.1.4
@@ -23,12 +23,12 @@ jobs:
       run: $GITHUB_WORKSPACE/scripts/lint vim-8.2
   test:
     name: test
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix:
         go: ['1.19','1.20']
-        vim: ['vim-8.0', 'vim-8.2', 'nvim']
+        vim: ['vim-8.1', 'vim-8.2', 'nvim']
     steps:
     - name: setup Go
       uses: actions/setup-go@v2.1.3

Makefile

@@ -1,4 +1,4 @@
-VIMS ?= vim-8.0 vim-8.2 nvim
+VIMS ?= vim-8.1 vim-8.2 nvim
 TEST_FLAGS ?=
 
 all: install lint test

README.md

@@ -34,7 +34,7 @@ This plugin adds Go language support for Vim, with the following main features:
 
 ## Install
 
-vim-go requires at least Vim 8.0.1453 or Neovim 0.4.0.
+vim-go requires at least Vim 8.1.2269 or Neovim 0.4.0.
 
 The [**latest stable release**](https://github.com/fatih/vim-go/releases/latest) is the
 recommended version to use. If you choose to use the master branch instead,

autoload/go/lint_test.vim

@@ -613,8 +613,8 @@ func! s:vimdir()
   let l:vim = "vim-8.2"
   if has('nvim')
     let l:vim = 'nvim'
-  elseif v:version == 800
-    let l:vim = 'vim-8.0'
+  elseif v:version == 810
+    let l:vim = 'vim-8.1'
   endif
 
   return l:vim

doc/vim-go.txt

@@ -77,7 +77,7 @@ experience.
 ==============================================================================
 INSTALL                                                           *go-install*
 
-vim-go requires at least Vim 8.0.1453 or Neovim 0.4.0. On macOS, if you are
+vim-go requires at least Vim 8.1.2269 or Neovim 0.4.0. On macOS, if you are
 still using your system version of vim, you can use homebrew to keep your
 version of Vim up-to-date with the following terminal command:
 >

plugin/go.vim

@@ -14,17 +14,17 @@ function! s:checkVersion() abort
     if has('nvim')
       let l:unsupported = !has('nvim-0.4.0')
     else
-      let l:unsupported = !has('patch-8.0.1453')
+      let l:unsupported = !has('patch-8.1.2269')
     endif
 
     if l:unsupported == 1
       echohl Error
-      echom "vim-go requires at least Vim 8.0.1453 or Neovim 0.4.0, but you're using an older version."
+      echom "vim-go requires at least Vim 8.1.2269 or Neovim 0.4.0, but you're using an older version."
       echom "Please update your Vim for the best vim-go experience."
       echom "If you really want to continue you can set this to make the error go away:"
       echom "    let g:go_version_warning = 0"
       echom "Note that some features may error out or behave incorrectly."
-      echom "Please do not report bugs unless you're using at least Vim 8.0.1453 or Neovim 0.4.0."
+      echom "Please do not report bugs unless you're using at least Vim 8.1.2269 or Neovim 0.4.0."
       echohl None
 
       " Make sure people see this.

scripts/install-vim

@@ -15,11 +15,11 @@ cd "$vimgodir"
 vim=${1:-}
 
 case "$vim" in
-  "vim-8.0")
+  "vim-8.1")
     # This follows the version in Ubuntu LTS. Vim's master branch isn't always
     # stable, and we don't want to have the build fail because Vim introduced a
     # bug.
-    tag="v8.0.1453"
+    tag="v8.1.2269"
     giturl="https://github.com/vim/vim"
     ;;
 
@@ -40,7 +40,7 @@ case "$vim" in
 
   *)
     echo "unknown version: '${1:-}'"
-    echo "First argument must be 'vim-8.0', vim-8.2, or 'nvim'."
+    echo "First argument must be 'vim-8.1', vim-8.2, or 'nvim'."
     exit 1
     ;;
 esac