[*] switch to compound assignment operators (#642)

Author: Massinja

internal/pgengine/bootstrap.go

@@ -147,7 +147,7 @@ func (pge *PgEngine) getPgxConnConfig() *pgxpool.Config {
 		connstr = fmt.Sprintf("host='%s' port='%d' dbname='%s' sslmode='%s' user='%s'",
 			pge.Connection.Host, pge.Connection.Port, pge.Connection.DBName, pge.Connection.SSLMode, pge.Connection.User)
 		if pge.Connection.Password != "" {
-			connstr = connstr + fmt.Sprintf(" password='%s'", pge.Connection.Password)
+			connstr += fmt.Sprintf(" password='%s'", pge.Connection.Password)
 		}
 	}
 	connConfig, err := pgxpool.ParseConfig(connstr)

internal/scheduler/chain.go

@@ -87,7 +87,7 @@ func (sch *Scheduler) retrieveChainsAndRun(ctx context.Context, reboot bool) {
 	var headChains []Chain
 	msg := "Retrieve scheduled chains to run"
 	if reboot {
-		msg = msg + " @reboot"
+		msg += " @reboot"
 	}
 	if reboot {
 		err = sch.pgengine.SelectRebootChains(ctx, &headChains)

internal/scheduler/tasks.go

@@ -38,7 +38,7 @@ func (sch *Scheduler) executeBuiltinTask(ctx context.Context, name string, param
 		if s, err = f(ctx, sch, val); err != nil {
 			return
 		}
-		stdout = stdout + fmt.Sprintln(s)
+		stdout += fmt.Sprintln(s)
 	}
 	return
 }

internal/tasks/files.go

@@ -29,7 +29,7 @@ func DownloadUrls(ctx context.Context, urls []string, dest string, workers int)
 		if err = resp.Err(); err != nil {
 			errstrings = append(errstrings, err.Error())
 		} else {
-			out = out + fmt.Sprintf("Downloaded %s to %s\n", resp.Request.URL(), resp.Filename)
+			out += fmt.Sprintf("Downloaded %s to %s\n", resp.Request.URL(), resp.Filename)
 		}
 	}
 	if len(errstrings) > 0 {