xfree86: fix readlink call
Misplaced parenthesis caused us to compare the sizeof, not the readlink return value. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> (cherry picked from commit bd5fe759)
Misplaced parenthesis caused us to compare the sizeof, not the readlink return value. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> (cherry picked from commit bd5fe759)