Fix issues where the filename is referred to as 'sideload'

The adb sideload utility referes to the filename as 'sideload' in some
places. This patch changes the printouts to display the filename instead.

Change-Id: I38ada01a08bed53a8d9697c03f55ce8cee2abe12
Signed-off-by: Magnus Eriksson <eriksson.mag@gmail.com>
mount: fix incorrect string length calculation

Fix bug https://code.google.com/p/android/issues/detail?id=54192
which incorrectly calculated the length of a string.

Fix compiler warning:

system/core/toolbox/mount.c:59:2: warning: initializer-string for array of chars is too long [enabled by default]
system/core/toolbox/mount.c:59:2: warning: (near initialization for 'options[16].str') [enabled by default]

Change-Id: If8663f8311c6348a730fcf731d402b57fee10cb5