Embedded Linux: "-p" means "prune"

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>

slides/sysdev-linux-tarballs-and-patches/sysdev-linux-tarballs-and-patches.tex

@@ -118,7 +118,8 @@
   \item \code{zcat diff_file.gz | patch -p<n>}
   \item Notes:
     \begin{itemize}
-    \item \code{n}: number of directory levels to skip in the file paths
+    \item \code{n}: number of directory levels to skip (\code{-p}: {\em
+          prune}) in the file paths
     \item You can reverse apply a patch with the \code{-R} option
     \item You can test a patch with \code{--dry-run} option
     \end{itemize}