LREPAIR is an LBR file integrity tester with limited correction 
capabilities.  It reports the CRC of all or the selected member 
files to the CRT, along with whether its findings agree with the 
values stored in the LBR directory.  If the stored CRC is 0000h 
and the member file isn't empty (as is the case for LBRs written 
to by LBRDISK or old versions of LU and NULU), it will fix the 
CRC, as well as strip any high bits in member filename entries.