If we're swapping 4-byte integers or 2-byte integers, make sure the size
of the buffer doesn't have any bytes left over, since we won't correctly
handle those bytes.
Reported in #1817:
xwayland-24.1.6/redhat-linux-build/../dix/swaprep.c:99:22:
warning[-Wanalyzer-allocation-size]:
allocated buffer size is not a multiple of the pointee's size
xwayland-24.1.6/redhat-linux-build/../dix/swaprep.c:146:22:
warning[-Wanalyzer-allocation-size]:
allocated buffer size is not a multiple of the pointee's size
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2078>