test: add dabba and dabbad build path to $PATH.
test: add dabba and dabbad build path to $PATH.

This change will allows sharness to find dabba and dabbad only with the
command name.
Executables in the build directory will be found first and then the
classic $PATH will be looked afterwards.

Signed-off-by: Emmanuel Roullit <e51ad7dcb99c77ecf30f537962c562ac80636eba@gmail.com>

eroullit/dabba,eroullit/dabba,eroullit/dabba,eroullit/dabba