Use portable '=' comparison operator for test(1).
Use portable '=' comparison operator for test(1).

'==' only supported by bash, not even GNU coreutils.

Signed-off-by: Thomas Klausner <2e212ebba9302a65e9fd21f6772368fe60592fe8@NetBSD.org>

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core