Miscellaneous issues

[takkaria]

• defines.h: removed the unused INSCRIP_SQUELCH
• cmd4.c: my_strcpy(shower, "", sizeof(finder)); and my_strcpy(shower, "", sizeof(finder)); have the sizeof() bit the wrong way round
• wizard2.c: do_cmd_wiz_cure_all() doesn't cure amnesia.

store.c:

• the last entry in the array comment_accept[] ends with a comma.
• price_item()'s comment refers to the "flip" paramater, which is no longer called "flip"

[ajps]

Fixed in [354].