<sect2><title>Contents of Patch</title>

<!-- <para>(Last checked against version &patch-contversion;.)</para> -->

<para>The patch program modifies a file according to a patch file. A patch
file usually is a list, created by the diff program, that contains
instructions on how an original file needs to be modified.</para>

<para><emphasis>Installed program</emphasis>: patch</para>

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