golangci-lint: remove "SA9003:" exception

.golangci.yml

@@ -55,14 +55,7 @@ linters-settings:
 
 issues:
   exclude-rules:
-    - path: _test\.go
+    - path: '_test\.go'
       linters:
-        - errcheck
-        - wrapcheck
-    # Disable staticcheck 'Empty body in an if or else branch' as it's useful
-    # to put a comment into an empty else-clause that explains why whatever
-    # is done in the if-caluse is not necessary if the condition is false.
-    - linters:
-        - staticcheck
-      text: "SA9003:"
-
+        - "errcheck"
+        - "wrapcheck"

internal/config/config_duration.go

@@ -81,10 +81,9 @@ func parseDuration(e string) (d time.Duration, err error) {
 		if durationFactor != 0 {
 			err = errors.New("missing time unit")
 			return
-		} else {
-			// It's the case where user specified '0'.
-			// We want to allow this, just like time.ParseDuration.
 		}
+		// It's the case where user specified '0'. We want to allow this, just like
+		// time.ParseDuration.
 	case "s":
 		durationUnit = time.Second
 	case "m":