Fixed corrupted japanese translations. This relates to bug 2952.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit 40703895da)

kolourpaint/kolourpaint.desktop

@@ -34,7 +34,7 @@ GenericName[hr]=Program za slikanje
 GenericName[hu]=Rajzolóprogram
 GenericName[is]=Teikniforrit
 GenericName[it]=Programma di disegno
-GenericName[ja]=繝壹う繝ｳ繝医<EFBFBD>繝ｭ繧ｰ繝ｩ繝
+GenericName[ja]=ペイントプログラム
 GenericName[kk]=Сурет салу бағдарламасы
 GenericName[km]=កម្មវិធី​គូរ
 GenericName[lt]=Piešimo programa