\fBebuild\fR(1) and \fBemerge\fR(1) (emerge generates digests only when the
\fIdigest\fR feature is enabled). Existing digests for files that do not exist
in ${DISTDIR} will be automatically assumed even when \fIassume\-digests\fR is
-not enabled. If a file exists in ${DISTDIR} but it's size does not match the
+not enabled. If a file exists in ${DISTDIR} but its size does not match the
existing digest, the digest will be regenerated regardless of whether or
not \fIassume\-digests\fR is enabled. The \fBebuild\fR(1) \fBdigest\fR command
has a \fB\-\-force\fR option that can be used to force regeneration of digests.