Correct misusage of "zpool".

PR:		206940
Submitted by:	Shawn Debnath <sd@beastie.io>
Differential Revision:	https://reviews.freebsd.org/D6163

en_US.ISO8859-1/books/handbook/zfs/chapter.xml

@@ -2265,7 +2265,7 @@ passwd          vi.recover
 cp: /var/tmp/.zfs/snapshot/after_cp/rc.conf: Read-only file system</screen>
 
 	<para>The error reminds the user that snapshots are read-only
-	  and can not be changed after creation.  No files can be
+	  and cannot be changed after creation.  Files cannot be
 	  copied into or removed from snapshot directories because
 	  that would change the state of the dataset they
 	  represent.</para>
@@ -2315,7 +2315,7 @@ camino/home/joe@backup    0K      -    87K  -</screen>
 
       <para>A typical use for clones is to experiment with a specific
 	dataset while keeping the snapshot around to fall back to in
-	case something goes wrong.  Since snapshots can not be
+	case something goes wrong.  Since snapshots cannot be
 	changed, a read/write clone of a snapshot is created.  After
 	the desired result is achieved in the clone, the clone can be
 	promoted to a dataset and the old file system removed.  This
@@ -3461,7 +3461,7 @@ vfs.zfs.vdev.cache.size="5M"</programlisting>
       combining the traditionally separate roles,
       <acronym>ZFS</acronym> is able to overcome previous limitations
       that prevented <acronym>RAID</acronym> groups being able to
-      grow.  Each top level device in a zpool is called a
+      grow.  Each top level device in a pool is called a
       <emphasis>vdev</emphasis>, which can be a simple disk or a
       <acronym>RAID</acronym> transformation such as a mirror or
       <acronym>RAID-Z</acronym> array.  <acronym>ZFS</acronym> file
@@ -3476,7 +3476,7 @@ vfs.zfs.vdev.cache.size="5M"</programlisting>
       <tgroup cols="2">
 	<tbody valign="top">
 	  <row>
-	    <entry xml:id="zfs-term-zpool">zpool</entry>
+	    <entry xml:id="zfs-term-pool">pool</entry>
 
 	    <entry>A storage <emphasis>pool</emphasis> is the most
 	      basic building block of <acronym>ZFS</acronym>.  A pool
@@ -3534,7 +3534,7 @@ vfs.zfs.vdev.cache.size="5M"</programlisting>
 		    pools can be backed by regular files, this is
 		    especially useful for testing and experimentation.
 		    Use the full path to the file as the device path
-		    in the zpool create command.  All vdevs must be
+		    in <command>zpool create</command>.  All vdevs must be
 		    at least 128&nbsp;MB in size.</para>
 		</listitem>
 
@@ -3641,7 +3641,7 @@ vfs.zfs.vdev.cache.size="5M"</programlisting>
 		<listitem>
 		  <para
 		      xml:id="zfs-term-vdev-cache"><emphasis>Cache</emphasis>
-		    - Adding a cache vdev to a zpool will add the
+		    - Adding a cache vdev to a pool will add the
 		    storage of the cache to the <link
 		      linkend="zfs-term-l2arc"><acronym>L2ARC</acronym></link>.
 		    Cache devices cannot be mirrored.  Since a cache