make_makefile generates bad 'find' command, 'echo -e' interacts badly with dash shell.

[colmbuckley]

Under some circumstances, the v4l/scripts/make_makefile.pl script can generate a 'find' command with bad arguments, resulting in a flood of error messages on make install. This only affects the removeubuntu function to remove installed files from Ubuntu/Debian locations. Replacing -name in the generated commands with -path addresses the issue.

Further, echo -e does not work correctly with the "dash" shell; as -e is not a supported flag in this shell. Replacing the echo -e with printf addresses this issue.

Proposed patch attached.
make_makefile.patch.txt