.BR setfsuid ()
and
.BR setfsgid (2)
-are usually only used by programs such as the Linux NFS server that
+are usually used only by programs such as the Linux NFS server that
need to change what user and group ID is used for file access without a
corresponding change in the real and effective user and group IDs.
A change in the normal user IDs for a program such as the NFS server
(But see below.)
.BR setfsuid ()
-will only succeed if the caller is the superuser or if
+will succeed only if the caller is the superuser or if
.I fsuid
matches either the real user ID, effective user ID, saved set-user-ID, or
the current value of