fix(linter): be golangci lint compliant

.gitea/workflows/golang-linters.yaml

@@ -20,7 +20,7 @@ jobs:
         go: [ stable ]
         os: [ ubuntu-latest-amd64, ubuntu-latest-arm64 ]
     steps:
-    - uses: actions/checkout@v5.0.0
+    - uses: actions/checkout@v4.3.0
     - uses: actions/setup-go@v5.5.0
       with:
         go-version: ${{ matrix.go }}

.gitea/workflows/golang-tests.yaml

@@ -33,7 +33,7 @@ jobs:
         go: [ stable ]
         os: [ ubuntu-latest-amd64, ubuntu-latest-arm64 ]
     steps:
-    - uses: actions/checkout@v5.0.0
+    - uses: actions/checkout@v4.3.0
     - uses: actions/setup-go@v5.5.0
       with:
         go-version: ${{ matrix.go }}

.gitea/workflows/markdown-linters.yaml

@@ -13,7 +13,7 @@ jobs:
     name: "Run markdown linter"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5.0.0
+    - uses: actions/checkout@v4.3.0
     - uses: DavidAnson/markdownlint-cli2-action@v20.0.0
       with:
         globs: '**/*.md'

.gitea/workflows/release.yaml

@@ -12,7 +12,7 @@ jobs:
     name: "Release application"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5.0.0
+    - uses: actions/checkout@v4.3.0
     - uses: docker/setup-qemu-action@v3.6.0
     - uses: actions/setup-go@v5.5.0
       with:

main.go

@@ -8,8 +8,6 @@ import (
 	"strings"
 )
 
-var version string
-
 func main() {
 	ips := os.Args[1:]
 	switch {
@@ -34,7 +32,10 @@ func main() {
 
 		for _, addr := range addrs {
 			if strings.Split(addr.String(), "/")[0] == ip {
-				fmt.Fprintln(os.Stdout, iface.Name)
+				_, err = fmt.Fprintln(os.Stdout, iface.Name)
+				if err != nil {
+					log.Fatal(err.Error())
+				}
 				return
 			}
 		}