Update gcc package size and add a note regarding shadow's tarballs going AWOL

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@6377 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter03/packages.xml

@@ -123,7 +123,7 @@ url="ftp://ftp.linuxfromscratch.org/pub/lfs/"/>.</para></note>
 </varlistentry>
 
 <varlistentry>
-<term>GCC (&gcc-version;) - 17,836 KB:</term>
+<term>GCC (&gcc-version;) - 26,783 KB:</term>
 <listitem>
 <para><ulink url="&gnu;gcc/"/></para>
 </listitem>
@@ -343,6 +343,11 @@ url="ftp://ftp.linuxfromscratch.org/pub/lfs/"/>.</para></note>
 <term>Shadow (&shadow-version;) - 1,080 KB:</term>
 <listitem>
 <para><ulink url="ftp://ftp.pld.org.pl/software/shadow/"/></para>
+<note><para>Shadow (&shadow-version;) may no longer be available at the listed
+location. The site administrators of the master download location occasionally
+remove older versions when new ones are released. An alternate download location
+that may have the correct version available is <ulink
+url="ftp://ftp.linuxfromscratch.org/pub/lfs/"/>.</para></note>
 </listitem>
 </varlistentry>