Update CMakeLists.txt for 52.05-r2rc1

Author: ab9rf

CMakeLists.txt

@@ -7,8 +7,8 @@ cmake_policy(SET CMP0074 NEW)
 
 # set up versioning.
 set(DF_VERSION "52.05")
-set(DFHACK_RELEASE "r1")
-set(DFHACK_PRERELEASE FALSE)
+set(DFHACK_RELEASE "r2rc1")
+set(DFHACK_PRERELEASE TRUE)
 
 set(DFHACK_VERSION "${DF_VERSION}-${DFHACK_RELEASE}")
 set(DFHACK_ABI_VERSION 2)