scripts: get_abi.pl: Fix get_abi.pl search output

Currently, the get_abi.pl will print an invalid symbol
(\xac character). Fix it.

Fixes: ab9c1480 ("scripts: get_abi.pl: Better handle multiple What parameters")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/fb27ac372e38f5ae9d088f9f4e9710c659e0b9e8.1632411447.git.mchehab+huawei@kernel.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>