[gimp/gimp-2-10] build: add Japanese translation to the Windows installer

[Ell <ell src gnome org>]

commit 1b4675f6fc95cc91765ed8e6f5c287672c6f7601
Author: Ell <ell_se yahoo com>
Date:   Sun Jun 7 16:38:20 2020 +0300

    build: add Japanese translation to the Windows installer
    
    (cherry picked from commit 0c06c24441accd24efb85d68868663a0169f7d23)

 build/windows/installer/gimp3264.iss     | 1 +
 build/windows/installer/lang/Makefile.am | 1 +
 2 files changed, 2 insertions(+)
---
diff --git a/build/windows/installer/gimp3264.iss b/build/windows/installer/gimp3264.iss
index 6a3b37b4fa..acc0cb912c 100755
--- a/build/windows/installer/gimp3264.iss
+++ b/build/windows/installer/gimp3264.iss
@@ -187,6 +187,7 @@ Name: "hr"; MessagesFile: "compiler:Languages\Unofficial\Croatian.isl,lang\hr.se
 Name: "id"; MessagesFile: "compiler:Languages\Unofficial\Indonesian.isl,lang\id.setup.isl"
 Name: "is"; MessagesFile: "compiler:Languages\Unofficial\Icelandic.isl,lang\is.setup.isl"
 Name: "it"; MessagesFile: "compiler:Languages\Italian.isl,lang\it.setup.isl"
+Name: "ja"; MessagesFile: "compiler:Languages\Japanese.isl,lang\ja.setup.isl"
 Name: "ko"; MessagesFile: "compiler:Languages\Unofficial\Korean.isl,lang\ko.setup.isl"
 Name: "lv"; MessagesFile: "compiler:Languages\Unofficial\Latvian.isl,lang\lv.setup.isl"
 Name: "mr"; MessagesFile: "compiler:Languages\Unofficial\Marathi.islu,lang\mr.setup.islu"
diff --git a/build/windows/installer/lang/Makefile.am b/build/windows/installer/lang/Makefile.am
index c6f2785b76..3dc19d855f 100644
--- a/build/windows/installer/lang/Makefile.am
+++ b/build/windows/installer/lang/Makefile.am
@@ -22,6 +22,7 @@ languages = \
        id:[id]:ISO-8859-1              \
        is:[is]:WINDOWS-1252            \
        it:[it]:WINDOWS-1252            \
+       ja:[ja]:CP932                   \
        ko:[ko]:EUC-KR                  \
        lv:[lv]:ISO-8859-13             \
        nl:[nl]:WINDOWS-1252            \