chore: simplify how result lines are constructed

Co-authored-by: Gabriele Fedi <gabriele.fedi@enterprisedb.com>
Signed-off-by: Niccolò Fei <niccolo.fei@enterprisedb.com>

Author: NiccoloFei

dagger/maintenance/updatelibs.go

@@ -43,12 +43,8 @@ func updateOSLibsOnTarget(
 
 	var result string
 	for _, m := range matches {
-		if len(m) >= 2 {
-			line := m[1]
-			if len(m) >= 3 && m[2] != "" {
-				line += " " + m[2]
-			}
-			result += line + "\n"
+		line := strings.Join(m[1:], " ")
+		result += strings.TrimSuffix(line, " ") + "\n"
 		}
 	}