ubimkvol: add -m option to create volume of maximum size

Signed-off-by: Paul B. Henson <henson@acm.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
ubi_tools: extend supported volume size to 64 bits; shrink code

function                                             old     new   delta
get_num_from_file                                      -      90     +90
packed_usage                                       29395   29377     -18
ubi_tools_main                                      1349    1141    -208
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 90/-226)          Total: -136 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
ubi_tools: add forgotten argv++

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
ubi_tools: enhance -s option to allow size multiplier to match mtd-utils

Based on patch by Paul B. Henson <henson@acm.org>

function                                             old     new   delta
static.size_suffixes                                   -      32     +32
ubi_tools_main                                      1141    1148      +7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
*: change execl sentinels from NULL to (char*)0

Signed-off-by: Rich Felker <dalias@aerifal.cx>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
cryptpw: do not segfault on EOF. Closes 6350

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
wget: do not abort if "_" is encountered in a HTTP header

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
unicode: check $LC_ALL to detect Unicode mode, not only $LANG

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
foo*sum: report I/O errors, don't merely exit with 1.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
tail: track file size only in -f mode

This eliminates extra fstat and lseek calls on every read

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Merge branch 'master' of git://git.busybox.net/busybox into jb-mr1