9842 man page typos and spelling

@@ -476,11 +476,11 @@
 .ad
 .sp .6
 .RS 4n
 The lifetime of an SA can optionally be specified in kilobytes. This parameter
 specifies the default value. If lifetimes are specified in both seconds and
-kilobytes, the SA expires when either the seconds or kilobyte threshholds are
+kilobytes, the SA expires when either the seconds or kilobyte thresholds are
 passed.
 .RE
 
 .sp
 .ne 2

@@ -668,11 +668,11 @@
 .RS 4n
 An authentication algorithm.
 .sp
 Use \fBipsecalgs\fR(1M) with the \fB-l\fR option to list the IPsec protocols
 and algorithms currently defined on a system. The \fBcryptoadm list\fR command
-diplays a list of installed providers and their mechanisms. See
+displays a list of installed providers and their mechanisms. See
 \fBcryptoadm\fR(1M).
 .RE
 
 .sp
 .ne 2