Fix typos

doc/fd.1

@@ -163,15 +163,15 @@ permissions or dead symlinks.
 By default, relative paths are prefixed with './' when -x/--exec,
 -X/--exec-batch, or -0/--print0 are given, to reduce the risk of a
 path starting with '-' being treated as a command line option. Use
-this flag to change this behavior. If htis flag is used without a value,
+this flag to change this behavior. If this flag is used without a value,
 it is equivalent to passing "always". Possible values are:
 .RS
 .IP auto
 Use the default behavior.
 .IP never
 Never strip the ./ at the beginning of paths
 .IP always
-Always strip the ./ at the beinning of paths
+Always strip the ./ at the beginning of paths
 .RE
 .TP
 .B \-\-one\-file\-system, \-\-mount, \-\-xdev