Avoid spaces between <option> and <replaceable>

* man/chage.1.xml: Add a non breaking space between options and
	their parameter because xml2po removes those spaces. Alioth#314401
	* man/chfn.1.xml: Likewise.
	* man/chgpasswd.8.xml: Likewise.
	* man/chpasswd.8.xml: Likewise.
	* man/chsh.1.xml: Likewise.
	* man/faillog.8.xml: Likewise.
	* man/gpasswd.1.xml: Likewise.
	* man/groupadd.8.xml: Likewise.
	* man/groupdel.8.xml: Likewise.
	* man/groupmems.8.xml: Likewise.
	* man/groupmod.8.xml: Likewise.
	* man/grpck.8.xml: Likewise.
	* man/lastlog.8.xml: Likewise.
	* man/newusers.8.xml: Likewise.
	* man/passwd.1.xml: Likewise.
	* man/pwck.8.xml: Likewise.
	* man/pwconv.8.xml: Likewise.
	* man/su.1.xml: Likewise.
	* man/useradd.8.xml: Likewise.
	* man/userdel.8.xml: Likewise.
	* man/usermod.8.xml: Likewise.
	* man/vipw.8.xml: Likewise.

man/chpasswd.8.xml

@@ -135,8 +135,7 @@
     <variablelist remap='IP'>
       <varlistentry>
 	<term>
-	  <option>-c</option>, <option>--crypt-method</option>
-	  <replaceable>METHOD</replaceable>
+	  <option>-c</option>, <option>--crypt-method</option>&nbsp;<replaceable>METHOD</replaceable>
 	</term>
 	<listitem>
 	  <para>Use the specified method to encrypt the passwords.</para>
@@ -187,8 +186,7 @@
       </varlistentry>
       <varlistentry>
 	<term>
-	  <option>-R</option>, <option>--root</option>
-	  <replaceable>CHROOT_DIR</replaceable>
+	  <option>-R</option>, <option>--root</option>&nbsp;<replaceable>CHROOT_DIR</replaceable>
 	</term>
 	<listitem>
 	  <para>
@@ -200,8 +198,7 @@
       </varlistentry>
       <varlistentry condition="sha_crypt">
 	<term>
-	  <option>-s</option>, <option>--sha-rounds</option>
-	  <replaceable>ROUNDS</replaceable>
+	  <option>-s</option>, <option>--sha-rounds</option>&nbsp;<replaceable>ROUNDS</replaceable>
 	</term>
 	<listitem>
 	  <para>