pginstaller - pginst: Fixed definition of EUC_jp codepage.

Log Message:
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Fixed definition of EUC_jp codepage.
This was helped by ITAGAKI Takahiro-san's report.
20932 should be used here instead of 51932. (MSDN might be wrong!)

#The locale was not chiefly used in Japan....
#Therefore, it did not notice easily.:-(
Thanks!

Modified Files:
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pginst/ca:
locale.c (r1.9 -> r1.10)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/ca/locale.c.diff?r1=1.9&r2=1.10)