TAKE - fix an external log bug

[Steve Lord <lord@xxxxxxx>]

This caused problems in log debug code, and probably a number of other
issues too.

Date:  Wed Sep  6 12:47:00 PDT 2000
Workarea:  jen.americas.sgi.com:/src/lord/xfs-linux.2.4.0-test5

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.4.0-test1-xfs


Modid:  2.4.0-test1-xfs:slinx:73794a
linux/fs/xfs/xfs_log_recover.c - 1.188
        - When removing the block containing the log footer from the external 
log
          size, do not remove the size of the iclog, this is the size of an 
internal
          memory buffer, not a disk structure.