Add 4 new signatures to my key from Usenix.

While I'm here, add Chris Shumway's key since I suspect I'm not the
only one who occasionally needs it for freebsd.org admin issues.

en_US.ISO8859-1/books/handbook/pgpkeys/chapter.sgml

@@ -1,7 +1,7 @@
 <!--
      The FreeBSD Documentation Project
 
-     $FreeBSD: doc/en_US.ISO8859-1/books/handbook/pgpkeys/chapter.sgml,v 1.73 2001/06/14 11:11:26 dfr Exp $
+     $FreeBSD: doc/en_US.ISO8859-1/books/handbook/pgpkeys/chapter.sgml,v 1.74 2001/07/11 23:11:41 murray Exp $
 -->
 
 <appendix id="pgpkeys">
@@ -1836,6 +1836,45 @@ pqMjQ7U7OMcAn2uyl3bEe476vV8RnKf83qQuw4uZ
 -----END PGP PUBLIC KEY BLOCK-----</programlisting>
     </sect2>
 
+    <sect2>
+      <title>&a.cshumway;</title>
+
+      <programlisting>pub  1024D/3219F982 2001-05-17 Christopher Shumway &lt;cshumway@titan-project.org&gt;
+             Fingerprint: 45F5 931B 0646 BF84 E78E  E274 6C29 340E 3219 F982</programlisting>
+
+      <programlisting role="pgpkey">-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v1.0.4 (FreeBSD)
+Comment: For info see http://www.gnupg.org
+
+mQGiBDsDZMARBACAhNya3wnw46CweXc2PKvIQythRjNsyDl17SNCwfzXc7Pvazz/
+MvM7W9YdrC/PbuALNkj6KZL65yZI+H/gVkQtR7GzeSmsz1sAWGQsXXgXsFQ4mSEQ
+U1+lVgLa4yn88kv9L1oIdrMZ+2ymUtnCqCd/7U7tPk13abQk7OmxRHppMwCg8119
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+U7qxgqKdrgfzCeh1DItNhcWSQCAVjYRbS/Tof/6Mr10Qn+HAwB+ng3tx0Fw1JnKA
+69uNA/9PZm1H4crVrA1pWyTgujAcZpb25mnmZjTsRmc+wtVOho9RTTs2nu+2QyH4
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+EBECAAYFAjtTkiMACgkQtNcQog5FH32XWgCgwYyh96GQDHGUjX3ltj4Vv9XsH6UA
+mwckH84kjvMV5rJBVSviYw+IxdPLuQENBDsDZMUQBAD3oXuy2E/13UM8R6MZC7a1
+pm/k4/MRK+ulxQgVYObyN5ynERTHvkYvHf0hZ+bUyOmdjQPH+L9sNJVs6YNHJxhm
+pWXf4LYaJ0maJ2FSCcFJmxEG87dUFZQmWSFFJaZ4dd48TjABx/CuKsdJtWIcJVGm
+w5t/By/w1/jgp1rw7SBbvwADBQQAu29NDNNBBu0xpShynFwLChaTVCog3g85HqXm
+fPtGc/ZFhxaNKysv6iRzx0icyTuqurhJWMVSnmqM3jYsZFNcEsUgqPm7yndJRelJ
+F1m7a7imjUuU+xnzDFLYRYnNryx5qXAwBLyY+mmoB96acCOgxyjttH/NbQAsdwhs
+4aXs3z2IRgQYEQIABgUCOwNkxQAKCRBsKTQOMhn5gqkVAJ94J1LKerb4+frNqdio
+mc5TkvVvcwCglu+HZ72NH+Lihc+Aay/RRC7+veE=
+=xZZp
+-----END PGP PUBLIC KEY BLOCK-----</programlisting>
+    </sect2>
+
     <sect2>
       <title>&a.jesper;</title>
 
@@ -2058,15 +2097,22 @@ wwQApzQwxOj8k7tBFASoFOJVZEtd8KM9oDRcJe3Dz+hzU5jbCkQJGDxtp6Y1kqel
 fLXLqJB1R8kZdTxR+IrRO+B7XRGvu/sB0u6CuKCBwSWSwstiGB8AvLwLp2vnIJxP
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 ZwAKCRAgFTHVhF3+3bZ6AJ49+954CXOAFFifgekFxoS5gSffPACePqswwNhSUKg1
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-/EE/gpmI2naHQuGS5C3RrCrX3/7IGGEVE9U0dl+krreVDDxz/yXYhX2D+5Zvriek
-JZHPmek20gT9i9gm3xLl2e0zS1zQ6BcYCtX5kVwIW5PTs09/MVvwscShNohGBBgR
-AgAGBQI6h7qtAAoJELTXEKIORR99rLsAn2+OxqxPJK8ZmYPKX1JKqN+IdvKuAKC6
-p9c3lJBbYHFlhxPDhBvgBaSOKw==
-=zaaW
+K/rvoludMtEAGACJAJUDBRA7PNuWDu2852ZqdCEBAbUvA/9SDqoqWGmNNtNG9prU
+Mqe+Rx3HqkukymKicFzvEkCjULQa1sH2TeM7ZxfqDh86hbtJEzF2/AsbYIhk6fg7
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+AJ9vjsasTySvGZmDyl9SSqjfiHbyrgCguqfXN5SQW2BxZYcTw4Qb4AWkjis=
+=3nAk
 -----END PGP PUBLIC KEY BLOCK-----</programlisting>
     </sect2>