add scan_ffs to fsck and fsck_ffs "see also" lists

[Scott McEachern]

I think these might be helpful:

--- fsck.8.orig Sun Feb 10 21:34:32 2013
+++ fsck.8      Sun Feb 10 21:37:48 2013
@@ -176,4 +176,5 @@ file system table
 .Xr growfs 8 ,
 .Xr mount 8 ,
 .Xr newfs 8 ,
+.Xr scan_ffs 8 ,
 .Xr rc 8

--- fsck_ffs.8.orig     Sun Feb 10 21:32:34 2013
+++ fsck_ffs.8  Sun Feb 10 21:39:17 2013
@@ -304,4 +304,5 @@ are fully enumerated and explained in Appendix A of
 .Xr growfs 8 ,
 .Xr mount_ffs 8 ,
 .Xr newfs 8 ,
+.Xr scan_ffs 8 ,
 .Xr rc 8

--
Scott McEachern

https://www.blackstaff.ca