Update bookinfo and changelog for 10.1

Minor change to mesa 



git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@24318 af4574ff-66df-0310-9fd7-8a98e5e911e0

book/bookinfo.xml

@@ -53,6 +53,12 @@
       <revremark>Ongoing Release</revremark>
     </revision>
 
+    <revision>
+      <revnumber>10.1</revnumber>
+      <date>2021-03-01</date>
+      <revremark>Twenty-third Release</revremark>
+    </revision>
+
     <revision>
       <revnumber>10.0</revnumber>
       <date>2020-09-01</date>

x/installing/mesa.xml

@@ -237,8 +237,8 @@ meson --prefix=$XORG_PREFIX          \
       -Dgallium-nine=false           \
       -Dglx=dri                      \
       -Dosmesa=gallium               \
-      -Dvalgrind=false               \
-      -Dlibunwind=false              \
+      -Dvalgrind=disabled            \
+      -Dlibunwind=disabled           \
       ..                             &&
 
 unset GALLIUM_DRV DRI_DRIVERS &&
@@ -307,13 +307,13 @@ cp -rfv ../docs/* /usr/share/doc/mesa-&mesa-version;</userinput></screen>
     </para>
 -->
     <para>
-      <parameter>-Dvalgrind=false</parameter>: This parameter disables
+      <parameter>-Dvalgrind=disabled</parameter>: This parameter disables
       the usage of Valgrind during the build process. Remove this parameter
       if you have Valgrind installed, and wish to check for memory leaks.
     </para>
 
     <para>
-      <parameter>-Dlibunwind=false</parameter>: This parameter disables
+      <parameter>-Dlibunwind=disabled</parameter>: This parameter disables
       the usage of libunwind.
     </para>