strUsage+=HelpMessageOpt("-prune=<n>",strprintf(_("Reduce storage requirements by pruning (deleting) old blocks. This mode disables wallet support and is incompatible with -txindex. "
"Warning: Reverting this setting requires re-downloading the entire blockchain. "
"(default: 0 = disable pruning blocks, >%u = target size in MiB to use for block files)"),MIN_DISK_SPACE_FOR_BLOCK_FILES/1024/1024));
strUsage+=HelpMessageOpt("-reindex",_("Rebuild block chain index from current blk000??.dat files on startup"));
#if !defined(WIN32)
strUsage+=HelpMessageOpt("-sysperms",_("Create new files with system default permissions, instead of umask 077 (only effective with disabled wallet functionality)"));