SnapRAID v11.4
- Fix build errors due new gcc 10 default for -fno-common.
- In fixing, if a parity is filtered out, don't attempt to recover its size,
and proceed without it if missing. - Avoid unnecessary parity read when fixing the parity itself.
This improves the 'fix' speed when a parity file is completely missing. - Removed a build warning about major/minor defined now in sys/sysmacros.h.