Fix distro typo.

Author: kpeeters

cmake/packaging.cmake

@@ -103,7 +103,7 @@ else()
 		  if(LINUX_ISSUE MATCHES "10")
    		 set(CPACK_SYSTEM_NAME "buster")
 			 set(CPACK_DEBIAN_PACKAGE_DEPENDS "python3, libpcre3, libpcrecpp0v5, libgmpxx4ldbl, libboost-system1.67.0, libboost-filesystem1.67.0, libboost-program-options1.67.0, libboost-regex1.67.0, libstdc++6, uuid-runtime, libgtkmm-3.0-1v5, texlive, texlive-latex-extra, python3-matplotlib, python3-mpmath, dvipng, python3-sympy, python3-gmpy2")
-   		 message("-- This is a Debian 9.x system")
+   		 message("-- This is a Debian Buster 10.x system")
 		  endif()
 		endif()
       if(LINUX_ISSUE MATCHES "Ubuntu")