Fix shafts generated in Tomb by changing '^' from the maps to '~'.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@10433 c06c8d41-db1a-0410-9941-cceddc491573

Created by  evktalo  on July 27, 2009
X6L467A3AZUQZ2QNR2M5BBW6H73UBEF55TN52QQKWSODIJAFU7AQC
In channels
main
Change contents