1.9.2 compilation error on NetBSD-amd64

[Thomas Klausner]

gnucash-1.9.2 build error on NetBSD-3.0/x86_64 (amd64):
 druid-acct-period.c: In function `ap_show_menu':
 druid-acct-period.c:337: warning: long int format, different type arg (arg 5)
 druid-acct-period.c: In function `ap_druid_create':
 druid-acct-period.c:530: warning: long int format, different type arg (arg 5)

Please fix! :)

Cheers,
 Thomas