workflows: add Go 1.19; update actions versions

.github/workflows/go.yml

@@ -1,6 +1,5 @@
----
 name: Go
-"on":
+on:
   push:
     branches: [main]
   pull_request:
@@ -11,22 +10,22 @@ permissions:
 
 env:
   # Minimum supported Go toolchain
-  ACTION_MINIMUM_TOOLCHAIN: "1.12"
+  ACTION_MINIMUM_TOOLCHAIN: "1.12.x"
 
 jobs:
   build:
     name: "Build"
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: ['1.17', '1.18']
+        go: ['1.17.x', '1.18.x', '1.19.x']
     steps:
       - run: sudo apt-get -qq update
       - name: Install libsystemd-dev
         run: sudo apt-get install libsystemd-dev
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Setup go
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v3
         with:
           go-version: ${{ matrix.go }}
       - name: Go fmt
@@ -44,9 +43,9 @@ jobs:
       - run: sudo apt-get -qq update
       - name: Install libsystemd-dev
         run: sudo apt-get install libsystemd-dev
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Setup go
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v3
         with:
           go-version: ${{ env['ACTION_MINIMUM_TOOLCHAIN'] }}
       - name: Go fmt

daemon/watchdog.go

@@ -30,8 +30,8 @@ import (
 // It returns one of the following:
 // (0, nil) - watchdog isn't enabled or we aren't the watched PID.
 // (0, err) - an error happened (e.g. error converting time).
-// (time, nil) - watchdog is enabled and we can send ping.
-//   time is delay before inactive service will be killed.
+// (time, nil) - watchdog is enabled and we can send ping.  time is delay
+// before inactive service will be killed.
 func SdWatchdogEnabled(unsetEnvironment bool) (time.Duration, error) {
 	wusec := os.Getenv("WATCHDOG_USEC")
 	wpid := os.Getenv("WATCHDOG_PID")

internal/dlopen/dlopen_test.go

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+
 package dlopen
 
 import (

unit/escape.go

@@ -27,14 +27,15 @@ const (
 )
 
 // If isPath is true:
-//   We remove redundant '/'s, the leading '/', and trailing '/'.
-//   If the result is empty, a '/' is inserted.
+//
+//	We remove redundant '/'s, the leading '/', and trailing '/'.
+//	If the result is empty, a '/' is inserted.
 //
 // We always:
-//  Replace the following characters with `\x%x`:
-//   Leading `.`
-//   `-`, `\`, and anything not in this set: `:-_.\[0-9a-zA-Z]`
-//  Replace '/' with '-'.
+//
+//	Replace the following characters with `\x%x`: Leading `.`,
+//	 `-`, `\`, and anything not in this set: `:-_.\[0-9a-zA-Z]`
+//	Replace '/' with '-'.
 func escape(unescaped string, isPath bool) string {
 	e := []byte{}
 	inSlashes := false
@@ -69,11 +70,13 @@ func escape(unescaped string, isPath bool) string {
 }
 
 // If isPath is true:
-//   We always return a string beginning with '/'.
+//
+//	We always return a string beginning with '/'.
 //
 // We always:
-//  Replace '-' with '/'.
-//  Replace `\x%x` with the value represented in hex.
+//
+//	Replace '-' with '/'.
+//	Replace `\x%x` with the value represented in hex.
 func unescape(escaped string, isPath bool) string {
 	u := []byte{}
 	for i := 0; i < len(escaped); i++ {